add a simple README.md

README.md

+# My Design Gui
+
+## Summary
+
+1. [Get started](#get-started)
+
+## Get started
+
+1. Get the source
+
+```
+git clone git@gitlab.aip.de:yfournier/mydesigngui.git mydesigngui
+```
+
+2. Let the show begin!
+
+```
+python -m mydesigngui
+```