document new got commit features
diff --git a/got/got.1 b/got/got.1
index 90c9455..d986705 100644
--- a/got/got.1
+++ b/got/got.1
@@ -347,6 +347,11 @@ are as follows:
.Bl -tag -width Ds
.It Fl m Ar msg
Use the specified log message when creating the new commit.
+Without the
+.Fl m
+option,
+.Cm got commit
+opens a temporary file in an editor where a log message can be written.
.El
.El
.Sh ENVIRONMENT
@@ -356,6 +361,9 @@ The author's name and email address for
.Cm got commit ,
for example:
.An Stefan Sperling Aq Mt stsp@openbsd.org
+.It Ev VISUAL, Ev EDITOR
+The editor spawned by
+.Cm got commit .
.El
.Sh EXIT STATUS
.Ex -std got