Merge pull request #7676 from apollographql/sb/odyssey-link

Add Odyssey link to AC getting started

docs/source/get-started.mdx

@@ -5,7 +5,7 @@ description: Set up Apollo Client in your React app
 
 Hello! This short tutorial gets you up and running with Apollo Client.
 
-> For a more complete introduction to the entire Apollo platform, we recommend first completing the [full-stack tutorial](https://www.apollographql.com/docs/tutorial/introduction/).
+> For a more complete introduction to the entire Apollo platform, [check out **Odyssey**, Apollo's new learning platform](https://odyssey.apollographql.com?utm_source=apollo_docs&utm_medium=referral). You can also complete the [full-stack tutorial](https://www.apollographql.com/docs/tutorial/introduction/).
 
 ## Installation