corrected comments

links/link.go

@@ -74,7 +74,8 @@ var _ yaml.Unmarshaler = (*LinkDefinition)(nil)
 // UnmarshalYAML deserializes links passed via topology file into LinkDefinition struct.
 // It supports both the brief and specific link type notations.
 func (ld *LinkDefinition) UnmarshalYAML(unmarshal func(interface{}) error) error {
-	// avoid recursion used only need to unmarshal the type field.
+	// struct to avoid recursion when unmarshalling
+	// used only to unmarshal the type field.
 	var a struct {
 		Type string `yaml:"type"`
 	}

links/link_veth.go

@@ -17,7 +17,7 @@ type LinkVEthRaw struct {
 	Endpoints        []*EndpointRaw `yaml:"endpoints"`
 }
 
-// ToLinkBriefRaw converts the raw link into a LinkConfig.
+// ToLinkBriefRaw converts the raw link into a LinkBriefRaw.
 func (r *LinkVEthRaw) ToLinkBriefRaw() *LinkBriefRaw {
 	lc := &LinkBriefRaw{
 		Endpoints:        []string{},