Merge pull request #1918 from isedwards/isedwards-license-info-update

Update README.md with complete licence info

Author: timlinux

README.md

@@ -18,9 +18,9 @@ daily GIS data viewing and editing needs. QGIS supports a number of raster
 and vector data formats, with new support easily added using the plugin
 architecture.
 
-QGIS is released under the GNU Public License (GPL) Version 2. Developing
-QGIS under this license means that you can (if you want to) inspect and
-modify the source code and guarantees that you, our happy user will always
+QGIS is released under the GNU Public License (GPL) Version 2 or above.
+Developing QGIS under this license means that you can (if you want to) inspect
+and modify the source code and guarantees that you, our happy user will always
 have access to a GIS program that is free of cost and can be freely
 modified.