Edición del readme con instrucciones para resolver dependencias en Ubuntu 16

README.md

@@ -1,5 +1,25 @@
 ## Web para el DataMad 17
 
+## Local development
+
+Check if you have [all requirements for local environment](http://jekyllrb.com/docs/installation/).
+To install all development dependencies install [Bundler](http://bundler.io/).
+```bash
+    gem install bundler
+```
+and run next command from root folder:
+
+```bash
+  bundle install
+```  
+
+To start Jekyll run:
+```bash
+    jekyll serve -w
+```
+Site will be available at http://127.0.0.1:4000/zeppelin/ or http://localhost:4000/zeppelin/ (on Windows)
+
+**NOTE:** in this mode all changes to html and data files will be automatically regenerated, but after changing ```_config.yml``` you have to restart server.
 
 ### Dependencias a resolver para desarrollo con Ubuntu 16: