work on README

README.md

-# User documentation - TEST
+# User documentation
+
+This is project contain IT4Innovation user documentation source.
 
 ## Environments
 
@@ -23,3 +25,32 @@ RedHat
 CentOS
 Mellanox
 ```
+
+## Developemnt Environment
+
+### MkDocs
+
+Documentation pages are build with [MkDocs](http://www.mkdocs.org/), [MkDocs at GitHub](https://github.com/mkdocs/mkdocs/). You need to install mkdocs loacally so that you can build the pages and run developement web server.
+
+```bash
+pip install mkdocs pygments pymdown-extensions
+```
+You can build the pages with `mkdocs build`.
+
+```bash
+‹hrb33-toshiba› 11:47 $ mkdocs build
+INFO    -  Cleaning site directory
+INFO    -  Building documentation to directory: /home/hrb33/Dokumenty/dev/it4i/docs.it4i.git/site
+```
+
+You can start local server with `mkdocs serve`.
+
+```bash
+✔ ~/Dokumenty/dev/it4i/docs.it4i.git [readme L|✚ 1…6⚑ 1]
+‹hrb33-toshiba› 11:47 $ mkdocs serve
+INFO    -  Building documentation...
+INFO    -  Cleaning site directory
+[I 170124 11:47:27 server:283] Serving on http://127.0.0.1:8000
+[I 170124 11:47:27 handlers:60] Start watching changes
+[I 170124 11:47:27 handlers:62] Start detecting changes
+```