Added a .gitignore template for RoR projects

community/Ruby/rails.gitignore

@@ -0,0 +1,44 @@
+# Ignore bundler config.
+/.bundle
+
+# Ignore all logfiles and tempfiles.
+/log/*
+/tmp/*
+!/log/.keep
+!/tmp/.keep
+
+# Ignore pidfiles, but keep the directory.
+/tmp/pids/*
+!/tmp/pids/
+!/tmp/pids/.keep
+
+# Ignore uploaded files in development.
+/storage/*
+!/storage/.keep
+/tmp/storage/*
+!/tmp/storage/
+!/tmp/storage/.keep
+
+/public/assets
+
+# brewfile autogenerated
+Brewfile.lock.json
+
+# Ignore master key for decrypting credentials and more.
+/config/master.key
+
+/app/assets/builds/*
+!/app/assets/builds/.keep
+
+/node_modules
+
+.env
+.idea
+
+yarn-error.log
+
+.DS_Store
+**/.DS_Store
+
+/.vscode
+/coverage