Update CONTRIBUTING.md

Author: Tyranja

CONTRIBUTING.md

@@ -13,14 +13,12 @@ If you have other ideas feel free to open an own issue!
 
 ## Working on your own branch
 
-1. [Fork](https://help.github.com/articles/fork-a-repo) the main repository.
-   This is your own copy of the `speakerinnen_liste` project to work in.
-2. Clone your repository to your local machine.
-3. `git checkout -b newdesign`
+1. Clone the repository. `git clone [email protected]:rubymonsters/speakerinnen_liste.git`
+2. `git checkout -b <your-name>-newdesign`
 This creates a new branch, called `newdesign` in our example, in your local repository.
-4. Make your changes.
-5. `git commit`
-6. `git push origin newdesign:newdesign`
+3. Make your changes.
+4. `git commit`
+5. `git push`
 This pushes your new branch called `newdesign` to your GitHub repository.
 
 ## Integrating your working code to master