Update readme

Author: stbinan

README.md

@@ -1,10 +1,8 @@
-# ZeroBlog
-Demo for decentralized, self publishing blogging platform.
+# ZeroBlog Plus
+There is [a ZeroBlog that supports tag and date index](https://github.com/zeronetscript/ZeroBlog/tree/toc_by_tag), but it's based on an old version, which doesn't support alloy-editor and image inserting yet. I use the awesome [meld tool](http://meldmerge.org/) and merge the code base, also add some mobile support.
 
-## Screenshot
+You can clone it from [here](/15mSYzsDxzarssqtV1pFPKqoCTaLdjVB2f/).
 
-![Screenshot](http://i.imgur.com/diTYHcm.png) 
-
-ZeroNet address: http://127.0.0.1:43110/1BLogC9LN4oPDcruNz3qo1ysa133E9AGg8
+If you want to upgrade your present ZeroBlog to this one. Backup your blog first, then edit the `content.json` in your blog root directory and change the `"cloned_from": "..."` to `"cloned_from": "15mSYzsDxzarssqtV1pFPKqoCTaLdjVB2f"`, then go to ZeroHello, from the site option (click the 3-dot button near your blog) and choose `Upgrade code`. That's all.
 
 To change the avatar replace the image /img/avatar.png with a new png, 60 by 60 pixels is recommended.