Contact Module Documentation

[Ali-7800]

Last contact module PR mentioned in Issue
This PR includes:

• Updated documentation to include new contact module and surface class
• Update examples README for changes in this update.
• Refactor: function documentations for NoForcing and FreeJoint

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1bf7fca) 94.01% compared to head (7e4b80f) 94.00%.

❗ Current head 7e4b80f differs from pull request most recent head efd98ef. Consider uploading reports for the commit efd98ef to get more accurate results

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Additional details and impacted files

@@               Coverage Diff                @@
##           update-0.3.2     #331      +/-   ##
================================================
- Coverage         94.01%   94.00%   -0.01%     
================================================
  Files                51       51              
  Lines              3172     3170       -2     
  Branches            347      347              
================================================
- Hits               2982     2980       -2     
  Misses              140      140              
  Partials             50       50              

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[armantekinalp]

LGTM

[skim0119]

Push to doc_patch branch

[armantekinalp]

@skim0119 can you lgtm

[skim0119]

LG