Update content/en/docs/refguide/runtime/custom-settings/configure-cors.md

Co-authored-by: Mark van Ments <35492184+MarkvanMents@users.noreply.github.com>

Author: WimJongeneel

content/en/docs/refguide/runtime/custom-settings/configure-cors.md

@@ -55,7 +55,7 @@ mxruntime:
         "Access-Control-Allow-Credentials": "true"
         "Access-Control-Allow-Headers": "Content-Type, x-csrf-token"
         "Access-Control-Allow-Methods": "POST, GET, OPTIONS"
-        "Access-Control-Allow-Origin": YOUR_ORIGIN
+        "Access-Control-Allow-Origin": "YOUR_ORIGIN"
 ```
 
 ## Troubleshooting