feat: Add shorthand cat alias c

[allank-fd]

Fixes

Checklist

• [x] I have made a change to this repository, be it functionality, testing, documentation, spelling, or grammar.
• [x] I updated my branch with the master branch.
• [x] I have added the necessary testing to prove my fix is effective/my feature works (or I did not modify functionality).
• [x] I have added necessary documentation about the functionality in an appropriate .md file.
• [x] I have appropriately commented any code I have modified

Short description of what this PR does:

• Added shorthand alias for cat c

[allank-fd]

@pimterry Thanks for the feedback, I've updated the PR to remove the formatting changes. Plus the small change to the Readme to keep it inline with the other command docs.

[pimterry]

Nice work, thanks! Merged :+1: