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3.) Wait until you get your new Fork
4.) Copy the URL of your Fork
5.) Create a new Folder and start cloninghttp://pokit.org/get/?5ee9bf8c1258dcbead5931ddd8f6c4a2.jpg
6.) Type the URL of the Repository and select the main branch you want to use
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8.) Wait while the repository gets cloned ____2015-07-27_14-33-46.png?version=1&modificationDate=1438002980000&cacheVersion=1&api=v2&width=500)
9.) Browse in your repository
10.) Use Git-Bash_-_Git_Extensions_2015-07-27_14-35-51.png?version=1&modificationDate=1438003042000&cacheVersion=1&api=v2&width=500)
11.) Create a new Branch with "git checkout -b xxx" (in this case MayFix) - and type 'Enter'
Note: The name of the branch is really random, MayFix is only an example here
12.) Switch to your (MayFix) Branch_-_Git_Extensions_2015-07-27_14-38-10.png?version=1&modificationDate=1438003124000&cacheVersion=1&api=v2&width=500)
13.) Apply your C++ Fix and save it
14.) Open up the newly created commit - You will see changes there
15.) Stage it 
16.) Apply a fitting Commit message (Structure to use: Main category/Subcategory: Object - Changed Subject)
17.) Push it
18.) Create the new branch in your online repository
19.) Click the Compare -Button button in the MainrepositoryMain repository
20.) Click the Create Pull Request button
Now you are done, congratulations to your first Pull Request 
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