docs: add Quick Links section to README

[prasanth-30011]

Added quick links section for easier navigation.

• [ ] I have read CONTRIBUTING.md.
• [ ] This pull request is all my own work -- I have not plagiarized it.
• [ ] All filenames are in PascalCase.
• [ ] All functions and variable names follow Java naming conventions.
• [ ] All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• [ ] All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 78.51%. Comparing base (2c4bf3c) to head (24883df).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #7129   +/-   ##
=========================================
  Coverage     78.51%   78.51%           
  Complexity     6752     6752           
=========================================
  Files           759      759           
  Lines         22402    22402           
  Branches       4400     4400           
=========================================
  Hits          17589    17589           
  Misses         4108     4108           
  Partials        705      705           

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