[enh] about page updates II.

searx/templates/about.html

@@ -18,6 +18,14 @@
 
 <h2>Technical details - How does it work?</h2>
 
+<p>Searx is a <a href="https://en.wikipedia.org/wiki/Metasearch_engine">metasearch engine</a>,
+inspired by the [seeks-project](http://seeks-project.info/).<br />
+It provides basic privacy by mixing your queries with searches on other platforms without storing search data. Queries are made using a POST request on every browser (except chrome*). Therefore they don't show up in our logs, neither in your url history. In case of Chrome* users there is an exception, Searx uses the search bar to issue GET requests.<br />
+Searx can be added to your browser's search bar, moreover it can be set as the default search engine.
+</p>
+
+<h2>How can I have my own?</h2>
+
 <p>Searx appreciates your suspicion regarding logs, so take the <a href="https://github.com/asciimoo/searx">code</a> and run it yourself! <br />Add your Searx to this <a href="https://github.com/asciimoo/searx/wiki/Searx-instances">list</a> to help other people to have privacy and make the Internet freer!
 <br />The more decentralized the Internet is, the more freedom we have!</p>