readme.md: added IPv6 launch logo for 0.10th branch

Closes gh-1647

README.md

@@ -17,6 +17,9 @@ Though Fail2Ban is able to reduce the rate of incorrect authentications
 attempts, it cannot eliminate the risk that weak authentication presents.
 Configure services to use only two factor or public/private authentication
 mechanisms if you really want to protect services.
+
+<img src="http://www.worldipv6launch.org/wp-content/themes/ipv6/downloads/World_IPv6_launch_logo.svg" height="52pt"/> | Since v0.10 fail2ban supports the matching of the IPv6 addresses.
+------|------
 
 This README is a quick introduction to Fail2ban. More documentation, FAQ, HOWTOs
 are available in fail2ban(1) manpage and on the website http://www.fail2ban.org