[fix] correct example of a single request

Thanks to discussion in the community slack for calling this out.

Author: MattDodsonEnglish

src/data/markdown/docs/05 Examples/01 Examples/01 single-request.md

@@ -7,40 +7,17 @@ draft: 'false'
 <CodeGroup labels={["single-request.js"]} lineNumbers={[true]}>
 
 ```javascript
-import http from 'k6/http';
-import { sleep, check } from 'k6';
-import { Counter } from 'k6/metrics';
 
-// A simple counter for http requests
-
-export const requests = new Counter('http_reqs');
-
-// you can specify stages of your test (ramp up/down patterns) through the options object
-// target is the number of VUs you are aiming for
+import http from "k6/http";
 
 export const options = {
-  stages: [
-    { target: 20, duration: '1m' },
-    { target: 15, duration: '1m' },
-    { target: 0, duration: '1m' },
-  ],
-  thresholds: {
-    http_reqs: ['count < 100'],
-  },
+  iterations: 1,
 };
 
 export default function () {
-  // our HTTP request, note that we are saving the response to res, which can be accessed later
-
-  const res = http.get('http://test.k6.io');
-
-  sleep(1);
-
-  const checkRes = check(res, {
-    'status is 200': (r) => r.status === 200,
-    'response body': (r) => r.body.indexOf('Feel free to browse') !== -1,
-  });
+  const response = http.get("https://test-api.k6.io/public/crocodiles/");
 }
 ```
 
 </CodeGroup>
+