document use of port numbers in URLs
diff --git a/got/got.1 b/got/got.1
index 7ef14b0..2d0fb78 100644
--- a/got/got.1
+++ b/got/got.1
@@ -152,9 +152,10 @@ already exists.
.Pp
The
.Ar repository-URL
-specifies a protocol scheme, a server hostname, and a path to the repository
-on the server:
-.Lk scheme://hostname/path/to/repository
+specifies a protocol scheme, a server hostname, an optional port number
+separated from the hostname by a colon, and a path to the repository on
+the server:
+.Lk scheme://hostname:port/path/to/repository
.Pp
The following protocol schemes are supported:
.Bl -tag -width git+ssh