README.md in reveal-ck-0.1.8

- old
+ new

@@ -756,11 +756,11 @@
 
 2. Install [Grunt](http://gruntjs.com/getting-started#installing-the-cli)
 
 4. Clone the reveal.js repository
 ```
-$ git clone git@github.com:hakimel/reveal.js.git
+$ git clone https://github.com/hakimel/reveal.js.git
 ```
 
 5. Navigate to the reveal.js folder
 ```
 $ cd reveal.js
@@ -776,16 +776,33 @@
 $ grunt serve
 ```
 
 8. Open <http://localhost:8000> to view your presentation
 
+You can change the port by using `grunt serve --port 8001`.
 
+
 ### Folder Structure
 - **css/** Core styles without which the project does not function
 - **js/** Like above but for JavaScript
 - **plugin/** Components that have been developed as extensions to reveal.js
 - **lib/** All other third party assets (JavaScript, CSS, fonts)
 
+
+### Contributing
+
+Please keep the [issue tracker](http://github.com/hakimel/reveal.js/issues) limited to **bug reports**, **feature requests** and **pull requests**. If you are reporting a bug make sure to include information about which browser and operating system you are using as well as the necessary steps to reproduce the issue.
+
+If you have personal support questions use [StackOverflow](http://stackoverflow.com/questions/tagged/reveal.js).
+
+
+#### Pull requests
+
+- Should follow the coding style of the file you work in, most importantly:
+  - Tabs to indent
+  - Single-quoted strings
+- Should be made towards the **dev branch**
+- Should be submitted from a feature/topic branch (not your master)
 
 
 ## License
 
 MIT licensed