Added DS_Store to the .gitignore file

Author: gabceb

.gitignore

@@ -4,6 +4,11 @@
 # or operating system, you probably want to add a global ignore instead:
 #   git config --global core.excludesfile ~/.gitignore_global
 
+# Ignore DS_Store
+*.DS_Store
+.DS_Store 
+DS_Store
+
 # Ignore bundler config
 /.bundle