point to new isso website, also include changelog

CHANGES.rst

@@ -0,0 +1,14 @@
+Changelog for Isso
+==================
+
+0.3 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
+0.2 (2013-10-29)
+----------------
+
+- initial PyPi release
+

README.md

@@ -10,9 +10,7 @@ Isso comes into play.
 [1]: https://github.com/posativ/acrylamid
 [2]: https://disqus.com/
 
-**[Screenshot @2013-09-13](http://posativ.org/~tmp/isso-preview.png)** |
-**[Screenshot @2013-10-03](http://rw.posativ.org/n1v/o)** |
-**[Try Yourself!](http://posativ.org/isso/static/post.html)** (in case it's not crashed ;-)
+**[Try Yourself!](http://posativ.org/isso/)**
 
 Isso is not stable (pretty far from that state) and the database format may
 change without any backwards compatibility. Just saying.