Update dependencies and add a comment

go.mod

@@ -38,7 +38,7 @@ require (
 	github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c // indirect
 	github.com/stretchr/testify v1.3.0 // indirect
 	github.com/writeas/activity v0.1.2
-	github.com/writeas/activityserve v0.0.0-20191008122325-5fc3b48e70c5
+	github.com/writeas/activityserve v0.0.0-20191011072627-3a81f7784d5b
 	github.com/writeas/go-strip-markdown v2.0.1+incompatible
 	github.com/writeas/go-webfinger v0.0.0-20190106002315-85cf805c86d2
 	github.com/writeas/httpsig v1.0.0

go.sum

@@ -122,6 +122,8 @@ github.com/writeas/activity v0.1.2 h1:Y12B5lIrabfqKE7e7HFCWiXrlfXljr9tlkFm2mp7Dg
 github.com/writeas/activity v0.1.2/go.mod h1:mYYgiewmEM+8tlifirK/vl6tmB2EbjYaxwb+ndUw5T0=
 github.com/writeas/activityserve v0.0.0-20191008122325-5fc3b48e70c5 h1:nG84xWpxBM8YU/FJchezJqg7yZH8ImSRow6NoYtbSII=
 github.com/writeas/activityserve v0.0.0-20191008122325-5fc3b48e70c5/go.mod h1:Kz62mzYsCnrFTSTSFLXFj3fGYBQOntmBWTDDq57b46A=
+github.com/writeas/activityserve v0.0.0-20191011072627-3a81f7784d5b h1:rd2wX/bTqD55hxtBjAhwLcUgaQE36c70KX3NzpDAwVI=
+github.com/writeas/activityserve v0.0.0-20191011072627-3a81f7784d5b/go.mod h1:Kz62mzYsCnrFTSTSFLXFj3fGYBQOntmBWTDDq57b46A=
 github.com/writeas/go-strip-markdown v2.0.1+incompatible h1:IIqxTM5Jr7RzhigcL6FkrCNfXkvbR+Nbu1ls48pXYcw=
 github.com/writeas/go-strip-markdown v2.0.1+incompatible/go.mod h1:Rsyu10ZhbEK9pXdk8V6MVnZmTzRG0alMNLMwa0J01fE=
 github.com/writeas/go-webfinger v0.0.0-20190106002315-85cf805c86d2 h1:DUsp4OhdfI+e6iUqcPQlwx8QYXuUDsToTz/x82D3Zuo=

webfinger.go

@@ -107,6 +107,8 @@ func RemoteLookup(handle string) string {
 	json.Unmarshal(body, &result)
 
 	var href string
+	// iterate over webfinger links and find the one with
+	// a self "rel"
 	for _, link := range result["links"].([]interface{}) {
 		if link.(map[string]interface{})["rel"] == "self" {
 			href = link.(map[string]interface{})["href"].(string)