chore(heroku): add instructions for deployment

deploy-heroku.md

@@ -0,0 +1,52 @@
+# Deploying the Goof app to Heroku
+
+## Step-by-step tutorial
+
+1. Sign-up to a free plan at heroku (https://www.heroku.com)
+2. Install the `heroku` CLI. If you're on a macOS:
+
+  ```
+  brew install heroku/brew/heroku
+  ```
+
+3. Authenticate to Heroku and follow the instructions with the following command:
+
+  ```
+  heroku login
+  ```
+
+
+4. Change directories to the goof/ app repository you cloned/forked
+5. Create a heroku app:
+
+  ```
+  heroku create
+  ```
+
+6. You'll have to update a Credit Card number at https://heroku.com/verify in order to enable the MongoDB addon next.
+
+7. Add the MongoDB addon:
+
+```
+heroku addons:create mongolab:sandbox
+```
+
+9. Push the Goof app to be deployed on the heroku platform
+
+```
+git push heroku master
+```
+
+## Trouble-shooting
+
+- If you need to inspect the logs
+
+```
+heroku logs --tail
+```
+
+- If you need to manually restart the deployed app:
+
+```
+heroku ps:scale web=1
+```