Fix typo.

pkg/README.md

@@ -5,6 +5,6 @@ For the documentation, refer to [godoc](https://pkg.go.dev/github.com/wi1dcard/f
 There are some vendored packages:
 
 - Package `http2` is a fork of standard http2 package in [`x/net`](https://github.com/golang/net/tree/master/http2). Follow and sync upstream whenever you want using [./sync-http2-pkg.sh](./sync-http2-pkg.sh).
-- Package `ja3` is cloned from <https://github.com/dreadl0ck/ja3>. See [./ja3/sync.sh]([./ja3/sync.sh) for more info.
+- Package `ja3` is cloned from <https://github.com/dreadl0ck/ja3>. See [./ja3/sync.sh](./ja3/sync.sh) for more info.
 
 If you want to use them, please import from the origin.