Enable Settings > Examples tab

* Add 'content' option to settings display
* Lots of examples at WordPress Admin > Testimonials > Settings, Examples tab
Link help to FAQ
Revise installation instructions

* RESOLVE #123 Revise installation and usage instructions for ease of use
Squashed 'includes/libraries/aihrus-framework/' changes from c07c641..34e9a21

34e9a21 Enable Settings > Examples tab

git-subtree-dir: includes/libraries/aihrus-framework
git-subtree-split: 34e9a2163db7ad3824f5cc1e8ad3e7c676f11461
Merge commit '084f160f252c3a5b4310c8b73274758e8290ed20' into 3.0.0RC1