Fix simple-separate-pod url path (#148)

There is a missing slash in the `kubernetes/simple-separate-pod` example link, leading to a 404. This change fixes that url in the README.md file.

Author: Sykkro

README.md

@@ -92,7 +92,7 @@ services:
 
 #### Advanced:
 
-Please see the examples directory for a more complete [docker-compose.yml](https://github.com/thomseddon/traefik-forward-auth/blob/master/examples/traefik-v2/swarm/docker-compose.yml) or [kubernetes/simple-separate-pod](https://github.com/thomseddon/traefik-forward-auth/blob/masterexamples/traefik-v2/kubernetes/simple-separate-pod/).
+Please see the examples directory for a more complete [docker-compose.yml](https://github.com/thomseddon/traefik-forward-auth/blob/master/examples/traefik-v2/swarm/docker-compose.yml) or [kubernetes/simple-separate-pod](https://github.com/thomseddon/traefik-forward-auth/blob/master/examples/traefik-v2/kubernetes/simple-separate-pod/).
 
 Also in the examples directory is [docker-compose-auth-host.yml](https://github.com/thomseddon/traefik-forward-auth/blob/master/examples/traefik-v2/swarm/docker-compose-auth-host.yml) and [kubernetes/advanced-separate-pod](https://github.com/thomseddon/traefik-forward-auth/blob/master/examples/traefik-v2/kubernetes/advanced-separate-pod/) which shows how to configure a central auth host, along with some other options.