README: make new licence clear

README.md

@@ -1,5 +1,7 @@
 # Morss - Get full-text RSS feeds
 
+_GNU AGPLv3 code_
+
 This tool's goal is to get full-text RSS feeds out of striped RSS feeds,
 commonly available on internet. Indeed most newspapers only make a small
 description available to users in their rss feeds, which makes the RSS feed
@@ -59,8 +61,6 @@ You may also need:
 - Apache, with python-cgi support, to run on a server
 - a fast internet connection
 
-GPL3 code.
-
 ## Arguments
 
 morss accepts some arguments, to lightly alter the output of morss. Arguments