added heading to index

source/index.rst

@@ -5,6 +5,10 @@
 
 Proxy4OWS
 =========
+
+Convert OGC WCS and WFS to OGC WMS for easy access from the client
+------------------------------------------------------------------
+
 Proxy4OWS is Open Source server program, which enables to visualize and
 work with large vector data and raster data in the web environment. It
 basically transforms OGC Web Feature Service and OGC Web Coverage service