Add description for compile-comments files

[elken]

Description

Adds a simple line for the compile-comments commands.

Refs #17

Checklist

• [x] I have read CONTRIBUTING guidelines.

CHANGELOG:

• [ ] Updated
• [ ] I will update it after this PR has been discussed
• [x] No need to update

KEYBINDINGS:

• [ ] Updated
• [ ] I will update it after this PR has been discussed
• [x] No need to update

PLUGINS:

• [ ] Updated
• [ ] I will update it after this PR has been discussed
• [x] No need to update

[elken]

Done both and I just noticed I left in the "colors" :sweat_smile:

[MarcoIeni]

good catch 😂 Thank you very much :)