Instructions on FONTS.md file need updating

[javihrz]

Did you clear cache before opening an issue?

• I have cleared my cache

Is there an existing issue for this?

• I have searched the existing open and closed issues

Does the issue happen when logged in?

N/A

Does the issue happen when logged out?

No

Does the issue happen in incognito mode when logged in?

N/A

Does the issue happen in incognito mode when logged out?

No

Account name

No response

Account config

No response

Current Behavior

Currently, the markdown file contains instructions for committing languages and a link to the language guidelines.

Expected Behavior

No response

Steps To Reproduce

No response

Environment

Anything else?

Link to mentioned markdown file: https://github.com/monkeytypegame/monkeytype/blob/master/docs/FONTS.md