Update readme (prometheus#479)

asherf · brian-brazil · commit 4c77bca13127 · 2019-10-25T10:54:05.000+01:00
Signed-off-by: Asher Foa &lt;asher@asherfoa.com&gt;
diff --git a/README.md b/README.md
@@ -314,7 +314,7 @@ Save the snippet below in a `myapp.py` file
 
 ```python
 from flask import Flask
-from werkzeug.wsgi import DispatcherMiddleware
+from werkzeug.middleware.dispatcher import DispatcherMiddleware
 from prometheus_client import make_wsgi_app
 
 # Create my app
