fix repository url

source/installation.rst

@@ -177,7 +177,7 @@ Step 4. Download WebODM
 Open the **Git Gui** program that comes installed with Git. From there:
 
 * When Git Gui opens, click 'Clone Existing Repository' option
-* In **Source Location** type: https://github.com/Open-DroneMap/WebODM
+* In **Source Location** type: https://github.com/OpenDroneMap/WebODM
 * In **Target Directory** click browse and navigate to a folder of your choosing (create one if necessary)
 * Press **Clone**