contrib/julienschmidt/httprouter: add godoc links

Author: dolmen

contrib/julienschmidt/httprouter/httprouter.go

@@ -3,7 +3,7 @@
 // This product includes software developed at Datadog (https://www.datadoghq.com/).
 // Copyright 2016 Datadog, Inc.
 
-// Package httprouter provides functions to trace the julienschmidt/httprouter package (https://github.com/julienschmidt/httprouter).
+// Package httprouter provides functions to trace the [github.com/julienschmidt/httprouter] package.
 package httprouter // import "github.com/DataDog/dd-trace-go/contrib/julienschmidt/httprouter/v2"
 
 import (
@@ -22,7 +22,7 @@ func init() {
 	instr = instrumentation.Load(instrumentation.PackageJulienschmidtHTTPRouter)
 }
 
-// Router is a traced version of httprouter.Router.
+// Router is a traced version of [httprouter.Router].
 type Router struct {
 	*httprouter.Router
 	config *tracing.Config
@@ -35,7 +35,7 @@ func New(opts ...RouterOption) *Router {
 	return &Router{httprouter.New(), cfg}
 }
 
-// ServeHTTP implements http.Handler.
+// ServeHTTP implements [http.Handler].
 func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	tw, treq, afterHandle, handled := tracing.BeforeHandle(r.config, r.Router, wrapRouter, w, req)
 	defer afterHandle()