Adding the .gitignore file to your git repository for a Unity project will
help avoid some of pitfalls and issues, especially if you have two or more developers
working on the project.
- Copy this to the root of your git project, and name 
.gitignore - Follow the instructions at Support for External Version Control to set your Unity Editor to use 
gitas an external version control system. - Enjoy!
 
If you have questions, feel free to contact me, Ward (Unity Product Manager).