Fix Kriss Feed license

Issue #145

README.md

@@ -440,7 +440,7 @@ See https://github.com/n1trux/awesome-sysadmin#identity-management
   * [FeedHQ](https://feedhq.org/) - FeedHQ is a web-based feed reader. ([Source Code](https://github.com/feedhq/feedhq)) `BSD` `Python`
   * [FreshRSS](http://freshrss.org/) - A self-hostable RSS feed aggregator. ([Demo](http://demo.freshrss.org/i/), [Source Code](https://github.com/FreshRSS/FreshRSS), [Mobile app](https://github.com/Alkarex/EasyRSS)) `AGPLv3` `PHP`
   * [JARR](http://1pxsolidblack.pl/jarr-en.html) - JARR (Just Another RSS Reader) is a web-based news aggregator and reader. ([Demo](https://jarr.info/login?next=%2F), [Source Code](https://github.com/jaesivsm/JARR)) `AGPLv3` `Python`
-  * [Kriss Feed](http://tontof.net/kriss/feed/) - A simple and smart (or stupid) feed reader. ([Demo](http://tontof.net/feed/), [Source Code](https://github.com/tontof/kriss_feed/)) `PHP`
+  * [Kriss Feed](http://tontof.net/kriss/feed/) - A simple and smart (or stupid) feed reader. ([Demo](http://tontof.net/feed/), [Source Code](https://github.com/tontof/kriss_feed/)) `CC0` `PHP`
   * [Leed](http://leed.idleman.fr) - Leed (for Light Feed) is a Free and minimalist RSS aggregator. ([Source Code](https://github.com/ldleman/Leed)) `CCBYNCSAv2` `PHP`
   * [Leselys](https://github.com/socketubs/leselys) - Your very elegant RSS reader. `AGPLv3` `Python`
   * [Lite-Reader](http://cubny.com/lite-reader/) - Read your feeds on your own machine with a simple and lite application. ([Source Code](https://github.com/cubny/lite-reader)) `BSD` `PHP`