Removes extra backtick from manual

[PedroRegisPOAR]

Description of changes

Things done

Removed an extra backtick from manual.

Was reading this section: https://nixos.org/manual/nixos/stable/index.html#sec-nixos-test-shell-access

Note the ` in the end of last line in the image:

Tested it with my local nixpkgs after removing it:

nix-build nixos/release.nix -A manual.x86_64-linux

Resulting path:

/nix/store/fa5vs0mbkd5xdjdn5qxj45vy9nrzf3ad-nixos-manual-html

Tested using flakes and remote branch:

EXPR_NIX='
  let
    nixpkgs = (builtins.getFlake "github:PedroRegisPOAR/nixpkgs/015e29a742b6b59946f947d65300e8c524e1f88b"); 
    pkgs = import nixpkgs {};

    manual = (import "${pkgs.path}/nixos/release.nix" {}).manual;
  in
    manual.x86_64-linux
'

nix \
build \
--impure \
--print-out-paths \
--expr \
"$EXPR_NIX"

Resulting path:

/nix/store/fa5vs0mbkd5xdjdn5qxj45vy9nrzf3ad-nixos-manual-html

Edits: had to force push to change commit message.

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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