Add authentik, tidy up recipe-footer

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

docs/kubernetes/backup/csi-snapshots/snapshot-controller.md

@@ -68,4 +68,4 @@ What have we achieved? We've got snapshot-controller running, and ready to manag
 
     * [ ] Configure [Velero](/kubernetes/backup/velero/) with a VolumeSnapshotLocation, so that volume snapshots can be made as part of a BackupSchedule!
 
---8<-- "recipe-footer.md"
+{% include 'recipe-footer.md' %}

docs/kubernetes/backup/csi-snapshots/snapshot-validation-webhook.md

@@ -45,4 +45,4 @@ What have we achieved? We now have the snapshot validation admission webhook run
 
     * [ ] Deploy [snapshot-controller]( (/kubernetes/backup/csi-snapshots/snapshot-controller/)) itself
 
---8<-- "recipe-footer.md"
+{% include 'recipe-footer.md' %}

docs/kubernetes/backup/index.md

@@ -17,4 +17,4 @@ For your backup needs, I present, Velero, by VMWare:
 
 * [Velero](/kubernetes/backup/velero/)
 
---8<-- "recipe-footer.md"
+{% include 'recipe-footer.md' %}

docs/kubernetes/backup/velero.md

@@ -11,6 +11,8 @@ helmrelease_namespace: velero
 kustomization_name: velero
 slug: Velero
 status: new
+upstream: https://velero.io/
+github_repo: https://github.com/vmware-tanzu/velero
 ---
 
 # Velero
@@ -326,4 +328,4 @@ What have we achieved? We've got scheduled backups running, and we've successful
 [^1]: This is where you'd add multiple Volume Groups if you wanted a storageclass per Volume Group
 [^2]: But not the rook-ceph cluster. If that dies, the snapshots are toast :toast: too!
 
---8<-- "recipe-footer.md"
+{% include 'recipe-footer.md' %}