Update overview_architecture.rst (#79161)

Add missing right parenthesis

docs/docsite/rst/dev_guide/overview_architecture.rst

@@ -53,7 +53,7 @@ Here's what a plain text inventory file looks like:
     db0.example.com
     db1.example.com
 
-Once inventory hosts are listed, variables can be assigned to them in simple text files (in a subdirectory called 'group_vars/' or 'host_vars/' or directly in the inventory file.
+Once inventory hosts are listed, variables can be assigned to them in simple text files (in a subdirectory called 'group_vars/' or 'host_vars/') or directly in the inventory file.
 
 Or, as already mentioned, use a dynamic inventory to pull your inventory from data sources like EC2, Rackspace, or OpenStack.