Tap on the verse number or select the text where you would like to create a note. A toolbar will pop up with several options. Select the 'Note' option. The note editor will pop up, which allows you to title the note, add text to the note and edit tags for the note.
Tap on the open space to add text to your note. Tap 'Done' when you are finished editing the note.
A note icon should appear in the Bible text next to the verse or text you selected to create a note.