Fix typo in README.md

remove bad parameter in catch block

README.md

@@ -503,7 +503,7 @@ var options = {
 };
 
 rp(options)
-    .catch(errors.TransformError, function (reason) {
+    .catch(function (reason) {
         console.log(reason.cause.message); // => Transform failed!
         // reason.response is the original response for which the transform operation failed
     });
@@ -660,4 +660,4 @@ If you want to debug a test you should use `gulp test-without-coverage` to run a
 
 In case you never heard about the [ISC license](http://en.wikipedia.org/wiki/ISC_license) it is functionally equivalent to the MIT license.
 
-See the [LICENSE file](LICENSE) for details.
+See the [LICENSE file](LICENSE) for details.