[TASK] First draft of new documentation

README.md

-# sg_news
+# Ext: sg_news
 
-Integrates a powerful News-System. News and Categories can be created as normal TYPO3-pages. News-pages have several
+<img src="https://www.sgalinski.de/typo3conf/ext/project_theme/Resources/Public/Images/logo.svg" />
+
+License: [GNU GPL, Version 2](https://www.gnu.org/licenses/gpl-2.0.html)
+
+Repository: https://gitlab.sgalinski.de/typo3/sg_news
+
+Please report bugs here: https://gitlab.sgalinski.de/typo3/sg_news
+
+TYPO3 version: >7.6 
+
+## About
+
+Integrates a powerful News-System. News and Categories can be created as normal TYPO3 pages. Newspages have several
 additional meta information.
 
 ## Integration