updated API documentation

API/v1/servers/POST Create or update server.md

@@ -130,7 +130,7 @@ curl_setopt_array($curl, array(
     "Authorization: Bearer <API your Bearer token>",    
   ],
   CURLOPT_POST => true,
-  CURLOPT_POSTFIELDS =>'<json payload body>',
+  CURLOPT_POSTFIELDS => '<json payload body>',
 ));
 
 $response = curl_exec($curl);