Update readme.md

readme.md

@@ -3,6 +3,10 @@ Website for Geoinformatic Research Group (Prof. Coors)
 #### URL (1): https://ugl.hft-stuttgart.de/
 #### URL (2): https://transfer.hft-stuttgart.de/pages/ugl/website/
 
+# How to Add contents?
+1. Contact admin (Joe/Sven/Habib) to get developer access.
+2. Add content following this [instruction](https://transfer.hft-stuttgart.de/gitlab/ugl/website/-/wikis/home).
+3. Commit/Push changes.
 
 ## Team