Update README.md

README.md

@@ -44,7 +44,7 @@ Some of these formulas are from the excellent book by Jean Meeus "Astronomical A
 At the moment this application is NOT functional and I only test this application with Gnome Builder.
 
 ```diff
-git clone https://gitlab.com/Zwerg12/picplanner.git
+git clone https://gitlab.com/Zwarf/picplanner.git
 cd picplanner
 meson builddir
 cd builddir