* Rearrange sections
* Add code snippets for text and links in navbars
* Add .navbar-link back in
* Add mention of .navbar-text, but it still needs to be re-implemented
* Update nav to reflect new order
* Add top margin, calculated by subtracting height of an input from height of a navbar, and dividing by two
* Uses the same method as .navbar-form
* To use, add .navbar-btn to any button outside a form element
* Also add section to docs detailing buttons in navbars, and add more ids for the other unlinked and unmentioned sections in the side nav