AETHER-1715 Add instructions to restore PVC/PV using Velero

Change-Id: I66f6ec9cff5e2f181b269640ace3848b9641ab27
diff --git a/.gitignore b/.gitignore
index 68c3e29..ba0cef7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 _build
 .vscode
 .env
+.DS_Store