docs: fix example links (#1241)

Author: guspan-tanadi

examples/create-react-app/README.md

@@ -1,6 +1,6 @@
 [![Netlify Status](https://api.netlify.com/api/v1/badges/ea51044b-e4eb-4b1d-8661-858260d82d7d/deploy-status)](https://app.netlify.com/sites/graphql-hooks-cra/deploys)
 
-See this example live at https://graphql-hooks-cra.netlify.com/
+See this example live at https://graphql-hooks-cra.netlify.app/
 
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