Update vault overview tag name

Author: libutcher

example/desktop_app.py

@@ -57,7 +57,7 @@ async def showcase_vault_operations(client: Client):
     print(f"Created vault: {created_vault.id} - {created_vault.title}")
     # [developer-docs.sdk.python.create-vault]-end
 
-    # [developer-docs.sdk.python.vault-overview]-start
+    # [developer-docs.sdk.python.get-vault-overview]-start
     # Get a vault overview
     vault_overview = await client.vaults.get_overview(created_vault.id)
     print(vault_overview)