Added liquid to gem dependencies

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Updated models to include updated UX

Added a lot more detail regarding how each screen works, specifically
bulk note management and add/edit notes a well as the note list screens

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>
Updated documentation generation scripts

Now includes styling and standard html5 as well as css for a cleaner
design. Also updated specs to include newer images.

Signed-off-by: Byron Sanchez <bfs5030@gmail.com>