Adding the documentation for using the kantan mapper in Touchdesigner

[CDhivyaBharathi]

No description provided.

[DeeprajPandey]

Thanks for contributing, @CDhivyaBharathi!

I have added contributing guidelines. Kindly go through it and run the dev server to see the errors this generates.

• please look at the sitemap and identify the directory where your guide fits. My guess is resources/tutorials. Please create the directory if it does not exist and check that it renders correctly on your local machine before making a commit.
• image is currently referencing a path on your local device /Users/dhivyabharathichellakumar/Desktop/kantanMapper.png. place it in an img directory like this.
• we use lower case file names with hyphens separating words. The file name will be kantan-mapper-doc.md. However, something like touchdesigner-kantan-mapper.md could work for now!