Link to any word/phrase used in the notes
If there are Notes which include anything in the language being learnt, they should link to the relevant word/phrase. This gives the student to understand more fully the word/phrase to which you refer.
For example on the There, there’s no shortage of little villages to explore, romantic castles to visit and historical sites to see. page there is the Note:
The correct grammar in this case would better say "de châteaux" and "de sites historiques", since the sentence is negative.
Both "de châteaux" and "de sites historiques" should be linked to these phrases.
If the word/phrase which you want to use in the Notes does not exist, they need to be added.
Think how the note will read to a student who understands nothing of the language
To think how understandable a particular Notes text might be, you should replace in your head any word or phrase in the Notes section with something completely unintelligible to you, such as "jing jong ping pong".
For example, to explain how "my (feminine singular)" works, the following, when not linking to the foreign word/phrases, is as confusing as it is helpful:
Léa says: "jing jong ping pong", because "ping pong" is a masculine word.
You see, it makes no sense unless you already understand French. When you link to the foreign words/phrases, it is easy to do understand the parts if needed:
Léa says: jing jong ping pong because brother (ping pong) is a masculine word.
Even better is to link to the words/phrases used, and to write the entire sentence in English with the foreign translations in brackets:
Léa says: "My (masculine singular) brother is called Tom" (Mon frère s'appelle Tom), because brother (frère) is a masculine word.
This makes perfect sense even if you haven't got a clue about the underlying words and phrases. Because they are linked to the word/phrase, anybody can easily make sense of the Notes.
Examples
See: