add code of conduct

[naik-aakash]

Closes #264

[naik-aakash]

Hi @JaGeo , this PR could be merged if anything else needs to be added to it, let me know

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.29%. Comparing base (2df3444) to head (a5d2656).

❗ Current head a5d2656 differs from pull request most recent head 3e47b92. Consider uploading reports for the commit 3e47b92 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #268   +/-   ##
=======================================
  Coverage   97.29%   97.29%           
=======================================
  Files          12       12           
  Lines        2666     2666           
=======================================
  Hits         2594     2594           
  Misses         72       72           

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