Describe this fork in README.md

README.md

@@ -8,3 +8,11 @@ GDAL is an open source X/MIT licensed translator library for raster and vector g
 * Download: ftp://ftp.remotesensing.org/gdal, http://download.osgeo.org/gdal
 * Wiki: http://trac.osgeo.org/gdal - Bug tracking, various user and developer contributed documentation and hints
 * Mailing list: http://lists.osgeo.org/mailman/listinfo/gdal-dev
+
+GDAL 1.11.x modifications for Visual Studio 2015
+====
+GDAL 1.11.x does not compile under Visual Studio 2015 out of the box. 
+This fork includes changes to fix that, namely:
+
+ * Disabling of a conflicting preprocessor macro (`snprintf`).
+ * Inclusion of `legacy_stdio_definitions.lib` for ODBC support.