doc: add godoc to Signature

1 files changed, 6 insertions, 3 deletions

diff --git a/plumbing/object/object.go b/plumbing/object/object.go
index 53c7e6c..ca5c541 100644
--- a/plumbing/object/object.go
+++ b/plumbing/object/object.go
@@ -77,11 +77,14 @@ func DecodeObject(s storer.EncodedObjectStorer, o plumbing.EncodedObject) (Objec
 // DateFormat is the format being used in the original git implementation
 const DateFormat = "Mon Jan 02 15:04:05 2006 -0700"
 
-// Signature represents an action signed by a person
+// Signature is used to identify who and when created a commit or tag.
 type Signature struct {
-	Name  string
+	// Name represents a person name. It is an arbitrary string.
+	Name string
+	// Email is an email, but it cannot be assumed to be well-formed.
 	Email string
-	When  time.Time
+	// When is the timestamp of the signature.
+	When time.Time
 }
 
 // Decode decodes a byte slice into a signature