Create FAQ.md (#48)

* Create FAQ.md

* Update FAQ.md

FAQ.md

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+1. "I deleted the a namespace but it is stuck in terminating because the razee components can't be deleted."
+    - see next
+1. "I can't delete a razee resource"
+    - `kubectl patch <RemoteResource> <my-rr> --type='merge' -p '{"metadata":{"finalizers":null}}'`
+    - If you are trying to clean up a cluster and you delete the razee controllers before cleaning up the custom resources,
+    you are removing the code necessary to clean up your resources. We use `Finalizers` to manage resource lifecycle; if
+    you delete the controllers before deleting the resource, our code is no longer running to remove the finalizer.
+    - ie. You have the deployment `remoteresource-controller` running in the razee namespace, then you create custom resource
+    RemoteResource `my-rr` in the razee namespace, then you delete the razee namespace. Kubernetes will delete all
+    resources, it deletes the deployments first (like remoteresource-controller). Then it tries to delete `my-rr`; it
+    gets stuck in terminating because the `remoteresource-controller` no longer exists to remove the finalizer from
+    `my-rr`. Which in effect means the razee namespace gets stuck in terminating.