Fix google ID token issuer.

Author: liminw

endpoints/getting-started/openapi.yaml

@@ -99,8 +99,8 @@ securityDefinitions:
     authorizationUrl: ""
     flow: "implicit"
     type: "oauth2"
-    x-google-issuer: "accounts.google.com"
-    x-google-jwks_uri: "https://www.googleapis.com/oauth2/v1/certs"
+    x-google-issuer: "https://accounts.google.com"
+    x-google-jwks_uri: "https://www.googleapis.com/oauth2/v3/certs"
     # Your OAuth2 client's Client ID must be added here. You can add
     # multiple client IDs to accept tokens from multiple clients.
     x-google-audiences: "YOUR-CLIENT-ID"