Add Rocket.Chat notifier (#44)

pkg/registry/image.go

@@ -1,4 +1,3 @@
-// Source: https://github.com/genuinetools/reg/blob/f3a9b00ec86f334702381edf842f03b3a9243a0a/registry/image.go
 package registry
 
 import (
@@ -8,6 +7,8 @@ import (
 	digest "github.com/opencontainers/go-digest"
 )
 
+// Source: https://github.com/genuinetools/reg/blob/f3a9b00ec86f334702381edf842f03b3a9243a0a/registry/image.go
+
 // Image holds information about an image.
 type Image struct {
 	Domain string

pkg/registry/manifest.go

@@ -7,6 +7,7 @@ import (
 	"github.com/opencontainers/go-digest"
 )
 
+// Manifest is the Docker image manifest information
 type Manifest struct {
 	Name          string
 	Tag           string

pkg/registry/tags.go

@@ -5,6 +5,7 @@ import (
 	"github.com/crazy-max/diun/pkg/utl"
 )
 
+// Tags holds information about image tags.
 type Tags struct {
 	List        []string
 	NotIncluded int
@@ -12,6 +13,7 @@ type Tags struct {
 	Total       int
 }
 
+// TagsOptions holds docker tags image options
 type TagsOptions struct {
 	Image   Image
 	Max     int