Fix Readme.rst / Added speciality.debug_css and speciality.debug_js and speciality.displayTips

Hi,
first of all please apologize me if this pull request is a little messed but I'm not yet very good at git and github ;)

In this pull request I made:

1. small fix to Readme.rst

2. added Typoscript parameter **speciality.debug_css** that when set to 1 the CSS files loaded by EXT:speciality/Resources/Private/Partials/SharedResources.html won't be merged and won't be the minified version. This is useful while debug/inspect CSS of the website.

3. added Typoscript parameter **speciality.debug_js** same as speciality.debug_css but for Javascript

4. added Typoscript parameter **speciality.displayTips** to show/hide FE tips for a logged in BE user.

To create the parameters of points 2/3/4 I created a new Typoscript file **speciality.ts** included in setup.txt.

The customization of .gitignore has been reverted with a later commit as you can see.

I hope that this pull can be useful for the project! :)