added notify.yml to enable discord and slack notif workflows (#33)

* added notify.yml to enable discord and slack notif workflows

* Edited README.md: added information and links about setting up Notification Actions

.github/workflows/notify.yml

@@ -0,0 +1,19 @@
+on: push
+name: Notification Workflow
+jobs:
+  slackNotification:
+    name: Slack Notification
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Slack Notification
+      uses: rtCamp/action-slack-notify@master
+      env:
+        SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+
+    - name: Discord notification
+      env:
+        DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
+      uses: Ilshidur/action-discord@master
+      with:
+        args: 'The project has been deployed.'

README.md

@@ -246,6 +246,20 @@ This will output an image in Docker Hub located at $DOCKER_USER/quill:latest
 
 The repository has been signed up to Dependabot, an automated dependency management tool. Dependabot automatically checks for updates for any outdated or insecure requirements and it will open a pull request for each one of them. To parametrize the tool further please [look here.](https://dependabot.com/docs/config-file/)
 
+### Notifications [on Push]
+
+This project has been set up to run workflows that send notifications to a Discord server and a Slack workspace when changes are pushed. The secrets required to run these must be set by the admin according to the documentation of each implementation (configuration links). 
+
+* `.yml` file information has already been added to the repository under `.github/workflows/notify.yml` and individual platforms may be removed by editing this file.
+
+##### Discord Notification
+[Configuring the action to send notifications to your organization's Discord server can be found here.](https://github.com/Ilshidur/action-discord)
+
+* Note that leaving `/github` at the end of the `DISCORD_WEBHOOK` token (contrary to what the action recommends)  will use the default GitHub webhook settings in addition to sending this action's notification. We suggest leaving it if there is no webhook already configured.
+
+##### Slack Notification
+[Configuring the action to send notifications to your organization's Slack workspace can be found here.](https://github.com/marketplace/actions/slack-notify)
+
 ## Testing
 
 ### Jest
@@ -262,6 +276,7 @@ If your contribution adds any new pages to Quill, please add them to `.pa11yci`
 
 For more information on pa11y-ci, please visit [pa11y-ci] and [pa11y], in particular the [section on actions][pa11y-actions].
 
+
 ## Contributing
 
 Contributions to Quill are welcome and appreciated! Please take a look at [`CONTRIBUTING.md`][contribute] first.