Update README.md

The actual QGIS licence (viewable in any source file, e.g. src/core/qgis.cpp) shows that the software is licenced under GPL version 2 "or (at your option) any later version". This PR updates README.md to reflect this for potential users who are concerned about the license restrictions if QGIS were GPLv2-only.
qgis · Feb 20, 2015 · c1b68a5 · c1b68a5
1 parent 8d1c5c6
commit c1b68a5
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/README.md b/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.