chore(docs/example): config headers

examples/config-http-headers.ts

@@ -0,0 +1,22 @@
+/* eslint-disable */
+
+import { gql, Graffle } from '../src/entrypoints/alpha/main.js'
+
+const request = Graffle.create({
+  schema: `https://countries.trevorblades.com/graphql`,
+  headers: {
+    authorization: `Bearer MY_TOKEN`,
+  },
+}).rawOrThrow
+
+const { data } = await request(
+  gql`
+		{
+			countries {
+				name
+			}
+		}	
+	`,
+)
+
+console.log(data)