Fix typos on the Assistant Panel page, also including removal of
unnecessary commas and standardization to US English.
Release Notes:
- N/A
PS: Assuming here US English is the preferred style (e.g., "canceled"
vs. "cancelled".) Happy to revert if that's not the case! :)
Standardize the blockquote "Notes" usage, so all places are using the
`>` blockquote notation, as well as a consistent style for the "Note"
word.
PS: Thought that bolding the word "**Note**" would make for a higher
visual distinction, so went for it in all existing cases! No strong
feelings, though; happy to roll back to just "Note:" if that's
preferrable!
Release Notes:
- N/A
