Updates see below

About.html:
NavBar-Update:
Removed comments
Adjusted Links
Some text.
Bootstrap.css
Changed NavBar color
Tried to center entries, failed
index.php
NavBar like About.html
Some kind of DB output, have to get adjusted to the real DB
index.html
NavBar
submit.php
NavBar
Made the Source Code a bit prettier
submitHTML.html
NavBar