Backport of docs: Fix indention of wal object in agent config into release/1.17.x (#20415)

backport of commit fe05f529b4

Co-authored-by: cskh <hui.kang@hashicorp.com>

website/content/docs/agent/config/config-files.mdx

@@ -1700,7 +1700,7 @@ subsystem that provides Consul's service mesh capabilities.
     because Consul must scan the database to find free space
     within the file.
 
-  - - `wal` ((#raft_logstore_wal)) - Object that configures the `wal` backend.
+  - `wal` ((#raft_logstore_wal)) - Object that configures the `wal` backend.
     Refer to [Experimental WAL LogStore backend](/consul/docs/agent/wal-logstore)
     for more information.