fix two broken links in whatis.html

Those were found by accident, there are probably others on site.

See containers#174.

whatis.html

@@ -51,9 +51,9 @@ <h3>Out of scope</h3>
   standard for composing Pods and for orchestrating containers, making
   Kubernetes YAML a defacto standard file format. Hence, Podman allows the
   creation and execution of Pods from a Kubernetes YAML file (see
-  <a href="https://github.com/containers/libpod/blob/master/docs/podman-play-kube.1.md">podman-play-kube</a>).
+  <a href="https://github.com/containers/libpod/blob/master/docs/source/markdown/podman-play-kube.1.md">podman-play-kube</a>).
   Podman can also generate Kubernetes YAML based on a container or Pod (see
-  <a href="https://github.com/containers/libpod/blob/master/docs/podman-generate-kube.1.md">podman-generate-kube</a>),
+  <a href="https://github.com/containers/libpod/blob/master/docs/source/markdown/podman-generate-kube.1.md">podman-generate-kube</a>),
   which allows for an easy transition from a local development environment
   to a production Kubernetes cluster.</li>
 </ul>