Add simple style tweak how tos

[jtauber]

• where to go to edit LESS and how to rebuild CSS
• where to go to edit footer
• how to change the site name in the top left
• how to change the top left to be a logo
• how to add left nav bar

[jtauber]

some of this duplicates #77

[shoshseiden]

I am interested in possibly contributing to this issue, if it hasn't been done already. Is there a certain file in the docs where I would contribute this information?

[ossanna16]

@shoshseiden I would suggest adding a new file but it would probably be best to discuss this with @jtauber :)

[jtauber]

yeah, I think a separate file with a section of each of the howtos I suggest in the description above

[jtauber]

@shoshseiden if you're not sure how to do any of the steps, just asking the channel; take notes and put together a pull request for the docs. Thanks!

[shoshseiden]

Awesome! Thank you, @jtauber @ossanna16 !