added msmtp configuration

docker-wenotes-tools/conf/msmtp/msmtprc-sample

+#
+# This is a sample - copy to msmtprc in this directory and replace
+# the [variables] below with valid values.
+#
+# easy docker container outgoing mail
+defaults
+logfile /tmp/msmtp.log
+
+tls on
+tls_trust_file /etc/ssl/certs/ca-certificates.crt
+
+account RemoteHost
+host [smtp host]
+from [from email address]
+port 587
+# SMPT authentication details
+auth on
+user [username]
+password [password]
+account default : RemoteHost