Login to Azure portal as shown in the image below. If you have a Microsoft Account already then sign in with it or else create a new Microsoft Account
Link to Azure Portal: https://azure.microsoft.com/en-us/features/azure-portal/
Once you are in the Azure Portal, click on All Services as shown in the image below.
Search for Cognitive services in the search box under all services
Under Cognitive Services click on add to create a new service called “Translate Text.”
Enter the name (give it any name) and other details and click on create.
Once the service gets created, go to Home>>Cognitive Services and click on the service you created in the previous step.
Now click on the “Keys” as shown below to generate your keys.
Grab any of the two keys shown and use it in the plugin.