Create CONTRIBUTING.md

Author: pkrawat1

CONTRIBUTING.md

@@ -0,0 +1,25 @@
+# Contributing
+
+Thank you for your interest in contributing! Please feel free to put up a PR for any issue or feature request.
+Even if you have little to no experience with Angular, We'll be more than happy to help. :)
+
+## Setup
+
+1. Fork the repo
+2. Clone your fork
+3. Make a branch for your feature or bug fix
+4. If you don't have Angular CLI installed: `npm install -g angular-cli@latest`
+5. `ng init`
+6. Type `n` for each file to not overwrite any file changes
+7. Run `ng serve` and open `localhost:4200` in a browser
+8. Work your magic
+9. Run `yarn build:prod` to kick off a production build and make sure nothing is broken
+10. To test service worker changes:
+  * `yarn build:prod` to kick off a fresh build and update the `dist/` directory
+11. Add yourself to the [contributor's list](https://github.com/aviabird/angularspree#contributors) in the README!
+12. Commit your changes and reference the issue you're addressing (for example: `git commit -am 'Commit message. Closes #5'`)
+13. Push your branch to your fork
+14. Create a pull request from your branch on your fork to `master` on this repo
+15. Have your branch get merged in! :star2:
+
+If you experience a problem at any point, please don't hesitate to file an issue or send me a message!