Add async call to first code example and fix env.<binding name>

Author: RebeccaTamachiro

src/content/docs/secrets-store/integrations/workers.mdx

@@ -140,7 +140,8 @@ import { env } from "cloudflare:workers";
 import ApiClient from "example-api-client";
 
 // MY_SECRETS_STORE_SECRET is now usable in top-level scope
-let apiClient = ApiClient.new({ apiKey: env.MY_SECRETS_STORE_SECRET });
+const APIkey = await env.MY_SECRETS_STORE_SECRET.get()
+const apiClient = ApiClient.new({ apiKey: APIKey });
 
 export default {
 	fetch(req) {
@@ -155,7 +156,7 @@ export default {
 export default {
   async fetch(request, env) {
     // Example of using the secret safely in an API request
-		const APIkey = await env.MY_SECRET_NAME.get()
+		const APIkey = await env.MY_SECRETS_STORE_SECRET.get()
 
     const response = await fetch("https://api.example.com/data", {
       headers: { "Authorization": `Bearer ${APIKey}` },