Yes, you can. Instructions from the github page:
“Turn on the WiFi on your device (because of the bug in the reader that doesn’t let you to create a backup of notes without WiFi enabled), go to the note app, select the three-line-menu from the top, Backup and Recover, select the floppy disc icon, choose a filename, click ok. Wait until the notes are exported. Connect the device to your computer, and copy over the zip file generated. It is in folder note/backup/local/.zip. Copy that over to the computer, and run this tool on it.”