Fix a typo in barrier docs and update the godbolt link

[PointKernel]

Description

This PR fixes a copy-paste leftover in the barrier doc and updates the Godbolt link accordingly. There are no actual code changes involved.

Checklist

• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[miscco]

Thanks a lot for helping with the docs 🎉

[github-actions]

🟩 CI Results [ Failed: 0 | Passed: 302 | Total: 302 ]

• 🟩 Project cub [ Failed: 0 | Passed: 99 | Total: 99 ]

  🟩 cpu
    🟩 amd64 (0% Fail)              Failed:  0  -- Passed: 91  -- Total: 91 
    🟩 arm64 (0% Fail)              Failed:  0  -- Passed:  8  -- Total:  8 
  🟩 ctk
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  🟩 cudacxx_full
    🟩 clang-cuda16 (0% Fail)       Failed:  0  -- Passed:  2  -- Total:  2 
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    🟩 nvcc12.4 (0% Fail)           Failed:  0  -- Passed: 79  -- Total: 79 
  🟩 cudacxx_name
    🟩 clang-cuda (0% Fail)         Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 nvcc (0% Fail)               Failed:  0  -- Passed: 97  -- Total: 97 
  🟩 cxx_full
    🟩 clang9 (0% Fail)             Failed:  0  -- Passed:  6  -- Total:  6 
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    🟩 gcc9 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
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    🟩 Intel2023.2.0 (0% Fail)      Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC14.16 (0% Fail)          Failed:  0  -- Passed:  1  -- Total:  1 
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    🟩 MSVC14.39 (0% Fail)          Failed:  0  -- Passed:  3  -- Total:  3 
  🟩 cxx_name
    🟩 clang (0% Fail)              Failed:  0  -- Passed: 43  -- Total: 43 
    🟩 gcc (0% Fail)                Failed:  0  -- Passed: 47  -- Total: 47 
    🟩 Intel (0% Fail)              Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 gpu
    🟩 v100 (0% Fail)               Failed:  0  -- Passed: 99  -- Total: 99 
  🟩 jobs
    🟩 build (0% Fail)              Failed:  0  -- Passed: 91  -- Total: 91 
    🟩 test (0% Fail)               Failed:  0  -- Passed:  8  -- Total:  8 
  🟩 os
    🟩 ubuntu18.04 (0% Fail)        Failed:  0  -- Passed: 14  -- Total: 14 
    🟩 ubuntu20.04 (0% Fail)        Failed:  0  -- Passed: 35  -- Total: 35 
    🟩 ubuntu22.04 (0% Fail)        Failed:  0  -- Passed: 44  -- Total: 44 
    🟩 windows2022 (0% Fail)        Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 sm
    🟩 60;70;80;90 (0% Fail)        Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 90a (0% Fail)                Failed:  0  -- Passed:  4  -- Total:  4 
  🟩 std
    🟩 11 (0% Fail)                 Failed:  0  -- Passed: 26  -- Total: 26 
    🟩 14 (0% Fail)                 Failed:  0  -- Passed: 29  -- Total: 29 
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    🟩 20 (0% Fail)                 Failed:  0  -- Passed: 16  -- Total: 16 
  

• 🟩 Project thrust [ Failed: 0 | Passed: 99 | Total: 99 ]

  🟩 cpu
    🟩 amd64 (0% Fail)              Failed:  0  -- Passed: 91  -- Total: 91 
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  🟩 ctk
    🟩 11.1 (0% Fail)               Failed:  0  -- Passed: 15  -- Total: 15 
    🟩 11.8 (0% Fail)               Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 12.4 (0% Fail)               Failed:  0  -- Passed: 81  -- Total: 81 
  🟩 cudacxx_full
    🟩 clang-cuda16 (0% Fail)       Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 nvcc11.1 (0% Fail)           Failed:  0  -- Passed: 15  -- Total: 15 
    🟩 nvcc11.8 (0% Fail)           Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 nvcc12.4 (0% Fail)           Failed:  0  -- Passed: 79  -- Total: 79 
  🟩 cudacxx_name
    🟩 clang-cuda (0% Fail)         Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 nvcc (0% Fail)               Failed:  0  -- Passed: 97  -- Total: 97 
  🟩 cxx_full
    🟩 clang9 (0% Fail)             Failed:  0  -- Passed:  6  -- Total:  6 
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    🟩 clang15 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang16 (0% Fail)            Failed:  0  -- Passed: 14  -- Total: 14 
    🟩 gcc6 (0% Fail)               Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 gcc7 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc8 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc9 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc10 (0% Fail)              Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 gcc11 (0% Fail)              Failed:  0  -- Passed:  7  -- Total:  7 
    🟩 gcc12 (0% Fail)              Failed:  0  -- Passed: 16  -- Total: 16 
    🟩 Intel2023.2.0 (0% Fail)      Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC14.16 (0% Fail)          Failed:  0  -- Passed:  1  -- Total:  1 
    🟩 MSVC14.29 (0% Fail)          Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 MSVC14.39 (0% Fail)          Failed:  0  -- Passed:  3  -- Total:  3 
  🟩 cxx_name
    🟩 clang (0% Fail)              Failed:  0  -- Passed: 43  -- Total: 43 
    🟩 gcc (0% Fail)                Failed:  0  -- Passed: 47  -- Total: 47 
    🟩 Intel (0% Fail)              Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 gpu
    🟩 v100 (0% Fail)               Failed:  0  -- Passed: 99  -- Total: 99 
  🟩 jobs
    🟩 build (0% Fail)              Failed:  0  -- Passed: 91  -- Total: 91 
    🟩 test (0% Fail)               Failed:  0  -- Passed:  8  -- Total:  8 
  🟩 os
    🟩 ubuntu18.04 (0% Fail)        Failed:  0  -- Passed: 14  -- Total: 14 
    🟩 ubuntu20.04 (0% Fail)        Failed:  0  -- Passed: 35  -- Total: 35 
    🟩 ubuntu22.04 (0% Fail)        Failed:  0  -- Passed: 44  -- Total: 44 
    🟩 windows2022 (0% Fail)        Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 sm
    🟩 60;70;80;90 (0% Fail)        Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 90a (0% Fail)                Failed:  0  -- Passed:  4  -- Total:  4 
  🟩 std
    🟩 11 (0% Fail)                 Failed:  0  -- Passed: 26  -- Total: 26 
    🟩 14 (0% Fail)                 Failed:  0  -- Passed: 29  -- Total: 29 
    🟩 17 (0% Fail)                 Failed:  0  -- Passed: 28  -- Total: 28 
    🟩 20 (0% Fail)                 Failed:  0  -- Passed: 16  -- Total: 16 
  

• 🟩 Project libcudacxx [ Failed: 0 | Passed: 104 | Total: 104 ]

  🟩 cpu
    🟩 amd64 (0% Fail)              Failed:  0  -- Passed: 96  -- Total: 96 
    🟩 arm64 (0% Fail)              Failed:  0  -- Passed:  8  -- Total:  8 
  🟩 ctk
    🟩 11.1 (0% Fail)               Failed:  0  -- Passed: 15  -- Total: 15 
    🟩 11.8 (0% Fail)               Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 12.4 (0% Fail)               Failed:  0  -- Passed: 86  -- Total: 86 
  🟩 cudacxx_full
    🟩 clang-cuda16 (0% Fail)       Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 nvcc11.1 (0% Fail)           Failed:  0  -- Passed: 15  -- Total: 15 
    🟩 nvcc11.8 (0% Fail)           Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 nvcc12.4 (0% Fail)           Failed:  0  -- Passed: 84  -- Total: 84 
  🟩 cudacxx_name
    🟩 clang-cuda (0% Fail)         Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 nvcc (0% Fail)               Failed:  0  -- Passed: 102 -- Total: 102
  🟩 cxx_full
    🟩 clang9 (0% Fail)             Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 clang10 (0% Fail)            Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 clang11 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang12 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang13 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang14 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang15 (0% Fail)            Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 clang16 (0% Fail)            Failed:  0  -- Passed: 14  -- Total: 14 
    🟩 gcc6 (0% Fail)               Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 gcc7 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc8 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc9 (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
    🟩 gcc10 (0% Fail)              Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 gcc11 (0% Fail)              Failed:  0  -- Passed:  7  -- Total:  7 
    🟩 gcc12 (0% Fail)              Failed:  0  -- Passed: 21  -- Total: 21 
    🟩 Intel2023.2.0 (0% Fail)      Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC14.16 (0% Fail)          Failed:  0  -- Passed:  1  -- Total:  1 
    🟩 MSVC14.29 (0% Fail)          Failed:  0  -- Passed:  2  -- Total:  2 
    🟩 MSVC14.39 (0% Fail)          Failed:  0  -- Passed:  3  -- Total:  3 
  🟩 cxx_name
    🟩 clang (0% Fail)              Failed:  0  -- Passed: 43  -- Total: 43 
    🟩 gcc (0% Fail)                Failed:  0  -- Passed: 52  -- Total: 52 
    🟩 Intel (0% Fail)              Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 MSVC (0% Fail)               Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 gpu
    🟩 v100 (0% Fail)               Failed:  0  -- Passed: 104 -- Total: 104
  🟩 jobs
    🟩 build (0% Fail)              Failed:  0  -- Passed: 91  -- Total: 91 
    🟩 nvrtc (0% Fail)              Failed:  0  -- Passed:  4  -- Total:  4 
    🟩 test (0% Fail)               Failed:  0  -- Passed:  8  -- Total:  8 
    🟩 verify_codegen (0% Fail)     Failed:  0  -- Passed:  1  -- Total:  1 
  🟩 os
    🟩 ubuntu18.04 (0% Fail)        Failed:  0  -- Passed: 14  -- Total: 14 
    🟩 ubuntu20.04 (0% Fail)        Failed:  0  -- Passed: 35  -- Total: 35 
    🟩 ubuntu22.04 (0% Fail)        Failed:  0  -- Passed: 49  -- Total: 49 
    🟩 windows2022 (0% Fail)        Failed:  0  -- Passed:  6  -- Total:  6 
  🟩 sm
    🟩 60;70;80;90 (0% Fail)        Failed:  0  -- Passed:  3  -- Total:  3 
    🟩 90a (0% Fail)                Failed:  0  -- Passed:  4  -- Total:  4 
  🟩 std
    🟩 11 (0% Fail)                 Failed:  0  -- Passed: 27  -- Total: 27 
    🟩 14 (0% Fail)                 Failed:  0  -- Passed: 30  -- Total: 30 
    🟩 17 (0% Fail)                 Failed:  0  -- Passed: 29  -- Total: 29 
    🟩 20 (0% Fail)                 Failed:  0  -- Passed: 17  -- Total: 17 
  

🏃‍ Runner counts (total jobs: 302)

#	Runner
232	linux-amd64-cpu16
28	linux-amd64-gpu-v100-latest-1
24	linux-arm64-cpu16
18	windows-amd64-cpu16

👃 Inspect Changes

Modifications in project?

	Project
	CCCL Infrastructure
+/-	libcu++
	CUB
	Thrust

Modifications in project or dependencies?

	Project
	CCCL Infrastructure
+/-	libcu++
+/-	CUB
+/-	Thrust