Elaborate changelog

Signed-off-by: Tushar Goel <tushar.goel.dav@gmail.com>

Author: TG1999

CHANGELOG.rst

@@ -5,7 +5,9 @@ Release notes
 Version v31.1.0
 ----------------
 
-- We are now handling purl fragments in package search.
+- We are now handling purl fragments in package search. For example:
+  you can now serch using queries in the UI like this : `cherrypy@2.1.1`,
+  `cherrypy` or `pkg:pypi`.
 
 
 Version v31.0.0