Update .gitignore to exclude WARP.md

[n01r]

Update .gitignore file to exclude optimization file generated by Warp terminal, called WARP.md.

[ax3l]

What is Warp Terminal? :D

[n01r]

An agentic AI terminal tool that I'm trying out. https://www.warp.dev/
Also, given its name I thought it was funny and fitting if it turns out to be cool. 😁

[n01r]

When you cd into a directory with a code base it asks you if you want to optimize it for it, and if you agree it creates a markdown file with some general info about the code base that it gets from a scan. The default name of that file is WARP.md.