How to add links to other notes? 

1. Manually 

Add a link to another note by adding a note between square brakets [[... 
As you type (e.g. [[B) you will see options to autocomplete (e.g. Books, provided you already have the note Books) 
If you add a link between two square brackets and the note didn't exist, it will be created automatically 

2. Automagically 

 
Notes that link here:
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