Add YouTube API enabling steps in readme.md (#117)

* Add YT enabling steps in Google Console

Co-authored-by: Anna Bauza <[email protected]>

README.md

@@ -98,6 +98,16 @@ origin  https://github.com/YOUR_GITHUB_USER_NAME/stem-diverse-tv (push)
 upstream        https://github.com/anitab-org/stem-diverse-tv (fetch)
 upstream        https://github.com/anitab-org/stem-diverse-tv (push)
 ```
+## YouTube Data API Enabling
+
+**Steps**
+
+1. You need a [Google Account](https://www.google.com/accounts/NewAccount) to access the Google API Console, request an API key, and register your application.
+2. Create a project in the [Google Developers Console](https://console.developers.google.com/) and [obtain authorization credentials](https://developers.google.com/youtube/registering_an_application) so your application can submit API requests.
+
+3. After creating your project, make sure the YouTube Data API is one of the services that your application is registered to use:
+  - Go to the [API Console](https://console.developers.google.com/) and select the project that you just registered.
+  - Visit the [Enabled APIs page](https://console.developers.google.com/apis/enabled). In the list of APIs, make sure the status is ON for the YouTube Data API v3
 
 ## Contributing