also mark the '200' as string

ePaul · web-flow · commit eb84d248aa68 · 2017-03-27T22:16:47.000+02:00
diff --git a/versions/3.0.md b/versions/3.0.md
@@ -1765,7 +1765,7 @@ myWebhook:
             schema:
               $ref: '#/components/schemas/SomePayload'
       responses:
-        200:
+        '200':
           description: webhook successfully processed an no retries will be performed
 ```
 
