Update x/smart/README.md

Co-authored-by: Vinicius Fortuna <[email protected]>

x/smart/README.md

@@ -94,7 +94,7 @@ Here is an example of a JSON config:
 
 *   The `tls` field specifies a list of TLS transports to test.
 *   Each TLS transport is a string that specifies the transport to use.
-*   For example, `override:host=cloudflare.net|tlsfrag:1` specifies a transport that uses domain fronting with Cloudflare and TLS fragmentation. [The available transports are documented here.](https://pkg.go.dev/github.com/Jigsaw-Code/outline-sdk/x/config#hdr-Config_Format)
+*   For example, `override:host=cloudflare.net|tlsfrag:1` specifies a transport that uses domain fronting with Cloudflare and TLS fragmentation. See the [config documentation](https://pkg.go.dev/github.com/Jigsaw-Code/outline-sdk/x/config#hdr-Config_Format) for details.
 
 ### Using the Smart Dialer