Add docs to create Youtube credentials

Signed-off-by: Ovenoboyo <ovenoboyo@gmail.com>

Author: Ovenoboyo

assets/img/cloud_console_cred_authorized_redirect.png

@@ -9,7 +9,7 @@ index: 1
 ## Enabling Spotify integration
 
 Due to restrictions from Spotify, a public api key could not be integrated into the app.
-Due to this, each user will be required to generate an API key for themselves
+Due to this, each user will be required to generate an API key for themselves.
 
 ### Creating an app on Spotify developer portal
 
@@ -33,5 +33,67 @@ Paste the string you copied earlier into these fields. Now you should be able to
 
 You can add your alternate accounts under **Users and Access** and use the same Client ID and Client Secret for multiple users.
 
+
+## Youtube integration
+
+Due to restrictions from Youtube, a public API key could not be integrated into the app.
+Due to this, each user will be required to generate an API key for themselves.
+
+### Creating a project on Google cloud console
+
+- Head over to [Google console create project](https://console.cloud.google.com/projectcreate). 
+
+- Enter a project name and press "Create".
+![Cloud console new app](/assets/img/cloud_console_new_app.png)
+
+### Enabling Youtube API
+- Click on "+ ENABLE APIS AND SERVICES" button at top of the dashboard.
+
+- Search for youtube and select "YouTube Data API v3"
+  ![Cloud console search API](/assets/img/cloud_console_search_api.png). 
+
+- Click on the "ENABLE" button. You'll then be redirected to "API/Service Details" dashboard.
+
+### Configuring consent screen
+- Select "OAuth consent screen" on the left sidebar and select "Configure Consent screen".
+
+- Select "External" and press "CREATE"
+  ![Cloud console oauth consent](/assets/img/cloud_console_oauth_consent.png)
+
+- Fill in required details.
+  ![Cloud console app details](/assets/img/cloud_console_oauth_app_details.png)
+
+- Under "Authorized domains", input "moosync.app"
+  ![Cloud console authorized domain](/assets/img/cloud_console_oauth_authorized_domain.png)
+
+- Press "SAVE AND CONTINUE"
+
+- Press on "ADD OR REMOVE SCOPES" and search for "Youtube Data API v3". Under it select the scope ".../auth/youtube.readonly" and press update. Then press "SAVE AND CONTINUE"
+
+- Under test users add all the email addresses you wish to use.
+
+- Press "SAVE AND CONTINUE" and return back to the dashboard
+  ![Cloud console oauth scope](/assets/img/cloud_console_oauth_scope.png)
+
+
+### Creating credentials
+- Head over to "Credentials" in the sidebar and press "Create credentials". Under it select "OAuth Client ID"
+
+- Set Application type as "Web application" and fill in other required details.
+
+- Under "Authorized Javascript origins" add the URIs
+  - http://localhost
+  - http://localhost:8080
+
+- Under "Authorized redirect URIs" add the URI
+  - https://moosync.app/youtube
+
+  ![Cloud console JS origins](/assets/img/cloud_console_cred_js_origins.png)
+
+  ![Cloud console authorized redirects](/assets/img/cloud_console_cred_authorized_redirect.png)
+
+- Click on create
+
+- Copy the client ID and secret and paste it under Settings > System > Youtube Client ID and Youtube Client Secret
 ## Discord integration
 - [Moosync Discord RPC](https://github.com/Ovenoboyo/moosync-discord-rpc/releases): Show your song details in discord through Discord RPC.