Merge pull request #558 from hannu/update-dev-instructions

Remove outdated information from development instructions

Author: junaidrsd

DEVELOPMENT.md

@@ -6,15 +6,11 @@ pull request from either your `dev` branch or from a feature branch.
 
 ### Running development server and watches
 
-The project contains a small demo stylesheet that can be used to develop the UI.
-Start watching UI code changes in lib/app and build the app using the demo stylesheets:
+The stylesheet of the style guide itself could be used as test data.
+Start watching UI code changes in lib/app and build the app using the style guides stylesheets:
 
     gulp dev
 
-Running the task also runs a small development server, and does the same as:
-
-    gulp watch --source ./lib/app --output ./demo-output --config ./lib/app/styleguide_config.json
-
 ### Running tests
 
 Run all the tests and JSCS linting with