doc(storage): create page for configuration options

[coryan]

This change is 

[codecov]

Codecov Report

Base: 93.98% // Head: 93.97% // Decreases project coverage by -0.00% ⚠️

Coverage data is based on head (949e5e7) compared to base (31db707).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10200      +/-   ##
==========================================
- Coverage   93.98%   93.97%   -0.01%     
==========================================
  Files        1531     1531              
  Lines      141061   141061              
==========================================
- Hits       132570   132566       -4     
- Misses       8491     8495       +4     

Impacted Files	Coverage Δ
...e/cloud/pubsublite/internal/alarm_registry_impl.cc	97.05% <0.00%> (-2.95%)	⬇️
...le/cloud/internal/default_completion_queue_impl.cc	96.59% <0.00%> (-0.57%)	⬇️
google/cloud/storage/parallel_upload.cc	98.28% <0.00%> (-0.35%)	⬇️
google/cloud/completion_queue_test.cc	97.13% <0.00%> (-0.20%)	⬇️
google/cloud/pubsub/samples/samples.cc	90.70% <0.00%> (-0.08%)	⬇️
google/cloud/pubsub/subscriber_connection_test.cc	98.36% <0.00%> (+0.54%)	⬆️

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[google-cloud-cpp-bot]

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