docs: import createApolloProvider is missing (#1515)

Author: hassanfayyaz19

packages/docs/src/guide-components/setup.md

@@ -37,6 +37,8 @@ Use the `@apollo/client/core` import path otherwise you will also import React.
 The provider holds the Apollo client instances that can then be used by all the child components.
 
 ```js
+import { createApolloProvider } from '@vue/apollo-option'
+
 const apolloProvider = createApolloProvider({
   defaultClient: apolloClient,
 })