reviewer feedback

Author: ethanpalm

guides/assistant.mdx

@@ -52,10 +52,11 @@ Configure sites that the assistant can search for additional context when answer
 You can use Exa's [filtering syntax](https://docs.exa.ai/changelog/domain-path-filter) when you configure external sites.
 
 - **Domain-level filtering**
-  - `example.com`: Search the entire domain
-  - `docs.example.com`: Search only the docs subdomain
+  - `example.com`: Search only the `example.com` domain
+  - `docs.example.com`: Search only the `docs.example.com` subdomain
+  - `*.example.com`: Search all subdomains of `example.com`
 - **Path-level filtering**
-  - `docs.example.com/api/*`: Only search API documentation sections
+  - `docs.example.com/api`: Only search API documentation sections
 - **Multiple patterns**
   - You can add multiple entries to target different sections across sites for more granular control over what external content the assistant can reference.