Update asterisk_mbox.markdown (home-assistant#14650)

pdugas · web-flow · commit a5a45245759f · 2020-09-29T23:13:08.000+02:00
The executable installed with the python package is `/usr/local/bin/asterisk-mbox-server`, hyphens instead of underscores.
diff --git a/source/_docs/asterisk_mbox.markdown b/source/_docs/asterisk_mbox.markdown
@@ -92,7 +92,7 @@ Before beginning make sure that you have the following:
    Type=simple
    User=asterisk
    Group=asterisk
-   ExecStart=/usr/local/bin/asterisk_mbox_server --cfg /etc/asterisk/asterisk_mbox.ini
+   ExecStart=/usr/local/bin/asterisk-mbox-server --cfg /etc/asterisk/asterisk_mbox.ini
    Restart=on-failure
 
    [Install]
