[x] Make sure you add the extension of the file (.cpp, .python, .java, etc).
[x] If your code is a solution for a code problem, please tell which one.
[x] Make sure your code is working, test for a lot of cases.
Description
There where lot's of temporary thumbnail files in the master branch. Those temporary files was created by a local OSX environment and shouldn't make it onto the main branch. To prevent the main branch from those files in the future they are added to the .gitignore.
Your checklist for this pull request
Description
There where lot's of temporary thumbnail files in the master branch. Those temporary files was created by a local OSX environment and shouldn't make it onto the main branch. To prevent the main branch from those files in the future they are added to the
.gitignore.