Corrected example request.

templates/front/docs_api.html

@@ -102,7 +102,7 @@ The response may contain a JSON document with additional data.
 <pre>
 curl {{ SITE_ROOT }}/v1/checks/ \
     -X POST \
-    -d '{"name": "Nightly Backups", "tags": "production,www", "timeout": 3600, "grace": 60}'
+    -d '{"api_key": "your-api-key", "name": "Backups", "tags": "prod,www", "timeout": 3600, "grace": 60}'
 </pre>
 
 <h3 class="api-section">Example Response</h3>