Pluck the "Context" section from the middle of the "Integrations".

This looks like it's been buried in the README.md after several rounds of
adding new integrations.  This moves it back out on its own.

README.md

@@ -223,20 +223,6 @@ async function StartServer() {
 StartServer().catch(error => console.log(error));
 ```
 
-### Context
-
-The context is created for each request. The following code snippet shows the creation of a context. The arguments are the `request`, the request, and `h`, the response toolkit.
-
-```js
-new ApolloServer({
-  typeDefs,
-  resolvers,
-  context: async ({ request, h }) => {
-    return { ... };
-  },
-})
-```
-
 ## Fastify
 
 ```js
@@ -282,6 +268,20 @@ const server = new ApolloServer({ typeDefs, resolvers });
 exports.graphqlHandler = server.createHandler();
 ```
 
+### Context
+
+The context is created for each request. The following code snippet shows the creation of a context. The arguments are the `request`, the request, and `h`, the response toolkit.
+
+```js
+new ApolloServer({
+  typeDefs,
+  resolvers,
+  context: async ({ request, h }) => {
+    return { ... };
+  },
+})
+```
+
 ## Apollo Server Development
 
 If you want to develop Apollo Server locally you must follow the following instructions: