fix markdown warnings

Author: mistafunk

README.md

@@ -1,9 +1,9 @@
 # CityEngine Plugins
 
-This repo hosts the individual home pages of CityEngine Procedural Runtime Plugins and APIs and is published here: https://esri.github.io/cityengine
+This repo hosts the individual home pages of CityEngine Procedural Runtime Plugins and APIs and is published here: <https://esri.github.io/cityengine>
 
 ## License Information
 
-For License information please see the licensing terms of the individual Plugins and APIs at https://esri.github.io/cityengine/
+For License information please see the licensing terms of the individual Plugins and APIs at <https://esri.github.io/cityengine/>
 
 For questions or enquiries regarding licensing, please contact the Esri CityEngine team ([email protected]).