Add "secrets move" command documentation

website/source/docs/commands/secrets/move.html.md

@@ -0,0 +1,31 @@
+---
+layout: "docs"
+page_title: "secrets move - Command"
+sidebar_current: "docs-commands-secrets-move"
+description: |-
+  The "secrets move" command moves an existing secrets engine to a new path. Any
+  leases from the old secrets engine are revoked, but all configuration
+  associated with the engine is preserved.
+---
+
+# secrets move
+
+The `secrets move` command moves an existing secrets engine to a new path. Any
+leases from the old secrets engine are revoked, but all configuration associated
+with the engine is preserved.
+
+**Moving an existing secrets engine will revoke any leases from the old
+engine.**
+
+## Examples
+
+Move the existing secrets engine at secret/ to generic/:
+
+```text
+$ vault secrets move secret/ generic/
+```
+
+## Usage
+
+There are no flags beyond the [standard set of flags](/docs/commands/index.html)
+included on all commands.