Merge pull request fluxcd#164 from yiannistri/docs/add-interval

Add interval to a couple of examples in docs as it's now a required field

Author: stefanprodan

docs/spec/v1beta1/gitrepositories.md

@@ -242,6 +242,7 @@ kind: GitRepository
 metadata:
   name: podinfo
 spec:
+  interval: 1m
   url: https://github.com/stefanprodan/podinfo
   secretRef:
     name: https-credentials
@@ -269,6 +270,7 @@ kind: GitRepository
 metadata:
   name: podinfo
 spec:
+  interval: 1m
   url: ssh://git@github.com/stefanprodan/podinfo
   secretRef:
     name: ssh-credentials