added a shell in the PHP-syntax chapter.
Update prism.js with php syntax support
Write up part about php variables
Add more outline (todo notes) to the php syntax chapter
Writeup selection part of php syntax chapter
Write about equality operators in the syntax chapter
Writeup iteration part in syntax chapter of php
Writeup function part in php syntax chapter
Add mamp/wamp todo note to installation chapter
Add outline for php code structure chapter
Type up chapter introduction and first part of including files in php code organization chapter
Write part about include in the php code organization chapter
Language
Write part about require in php code organization chapter
Write part about require_once in php code organization chapter
TODO -> Kommer snart...
Spelling
Start typing up part about html embedding strategies in php code structure chapter
My changes
Changes in the gitignore file