[moserial] add comment to remember to update flathub repo when releasing

[Michael J. Chudobiak <mjc src gnome org>]

commit fd9b70179be8ae342f78c17a0f7811c0a5bad2c9
Author: Michael J. Chudobiak <mjc avtechpulse com>
Date:   Tue Jul 27 15:50:53 2021 -0400

    add comment to remember to update flathub repo when releasing

 configure.ac | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/configure.ac b/configure.ac
index b555fe7..9c5cf58 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,6 @@
 AC_INIT([moserial],[3.0.19],[https://gitlab.gnome.org/GNOME/moserial/issues/])
 dnl - also update data/moserial.appdata.xml.in
+dnl - also update yaml file in the flathub repo
 
 AC_CONFIG_SRCDIR([Makefile.am])
 AC_CONFIG_HEADERS(config.h)