Docs: Shortcuts for Headings

Re the new Doc object.

Please add a shortcut to Headings, similar to in Google Docs, MS Word, and Confluence, to name a few.

The shortcut I use in Windows (and presumably Cmd + Option works?) are:

• Ctrl + Alt + 1 → Heading 1
• Ctrl + Alt + 2 → Heading 2
• Ctrl + Alt + 3 → Heading 3
• Ctrl + Alt + 0  → Normal (in Confluence, at least)