Canvas AI: Update README.md and add CONTRIBUTING.MD to canvas ai module
>>> [!note] Migrated issue
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Reported by: [utkarsh_33](https://www.drupal.org/user/3727088)
Related to !143
>>>
<h3 id="overview">Overview</h3>
<p>Add a contributing.md file and also update the readme.md file to follow the latest changes.</p>
<h3 id="proposed-resolution">Proposed resolution</h3>
<h3 id="ui-changes">User interface changes</h3>
issue