Add Searx license, and language. Remove Searx public instances. (#758)

README.md

@@ -800,7 +800,7 @@ See https://github.com/n1trux/awesome-sysadmin#monitoring and https://github.com
 ## Search Engines
 
   * [Gigablast](http://www.gigablast.com/) - open source search engine. ([Demo](http://www.gigablast.com/), [Source Code](https://github.com/gigablast/open-source-search-engine)) `Apache` `C++`
-  * [Searx](https://github.com/asciimoo/searx) - A privacy-respecting, hackable metasearch engine. ([Demo](https://searx.me/), [Public instances](https://github.com/asciimoo/searx/wiki/Searx-instances))
+  * [Searx](https://github.com/asciimoo/searx) - A privacy-respecting, hackable metasearch engine. ([Demo](https://searx.me/)) `AGPLv3` `Python`
   * [Seeks](https://beniz.github.io/seeks/) - A websearch proxy and collaborative distributed tool for websearch. `AGPLv3` `C++`
   * [Yacy](http://yacy.net/en/index.html) - Peer based, decentralized search engine server. `GPL2` `Java`