Allow editing of mirror archive url

This is needed in case a mirror has moved or is down and need to move
to new mirror.

man/aptly.1

@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "APTLY" "1" "September 2017" "" ""
+.TH "APTLY" "1" "November 2017" "" ""
 .
 .SH "NAME"
 \fBaptly\fR \- Debian repository management tool
@@ -617,6 +617,10 @@ $ aptly mirror edit \-filter=nginx \-filter\-with\-deps some\-mirror
 Options:
 .
 .TP
+\-\fBarchive\-url\fR=
+archive url is the root of archive
+.
+.TP
 \-\fBfilter\fR=
 filter packages in mirror
 .
@@ -625,6 +629,14 @@ filter packages in mirror
 when filtering, include dependencies of matching packages as well
 .
 .TP
+\-\fBignore\-signatures\fR
+disable verification of Release file signatures
+.
+.TP
+\-\fBkeyring\fR=
+gpg keyring to use when verifying Release file (could be specified multiple times)
+.
+.TP
 \-\fBwith\-sources\fR
 download source packages in addition to binary packages
 .