docs: Small fixes

docs/docs/guides/getting-started/graphql-intro/index.mdx

@@ -6,6 +6,8 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
 :::info
+Vendure uses [GraphQL](https://graphql.org/) as its API layer.
+
 This is an introduction to GraphQL for those who are new to it. If you are already familiar with GraphQL, you may choose
 to skip this section.
 :::
@@ -173,7 +175,7 @@ type Mutation {
 
 input UpdateCustomerEmailInput {
   customerId: ID!
-  name: String!
+  email: String!
 }
 
 type Customer {
@@ -520,8 +522,11 @@ which fields of that object type we want to fetch. For example:
       name
       slug
       variants {
+        // highlight-start
+        # Sub-fields are required for object types
         sku
         priceWithTax
+        // highlight-end
       }
     }
   }

docs/docs/guides/getting-started/installation/index.md

@@ -113,10 +113,19 @@ Open the Admin UI at [http://localhost:3000/admin](http://localhost:3000/admin)
 * **password**: superadmin
 :::
 
-## Troubleshooting
+### Troubleshooting
 
 If you encounter any issues during installation, you can get a more detailed output by setting the log level to `verbose`:
 
 ```sh
 npx @vendure/create my-shop --log-level verbose
 ```
+
+## Set up a storefront
+
+Once you have a Vendure server running, you can set up a storefront to interact with it! 
+
+We have a number of storefront starter kits available for you to use - head over to the [Storefront Starters](/guides/storefront/storefront-starters/)
+page to learn more.
+
+![Remix storefront](../../storefront/storefront-starters/remix-storefront.webp)