[TVheadend] add basic configuration info to package description

[kekukui]

In the Package Manager description field, could you include a URL for the TVH setup instructions
(or state the default port for the web interface)

[m4tt075]

@kekukui Hmh, a regular user should not even have to know the port. After installing Tvheadend, an icon should be created in the DSM Web-UI programs menu (top left of your screen). If you click the icon, you should be redirected to the Tvheadend web-UI automatically. Does that not work for you?

[kekukui]

The icon did not appear after installation. I think this was caused by a browser bug that interferes with page rendering: brave/brave-browser#1896

I tried a different browser and it works now.

[m4tt075]

OK. Thanks for coming back. Coud you please close this issue as resolved then?

[kekukui]

As the setup wizard is invoked upon first run, I still think a link to the user guide would be helpful - but maybe it belongs in the TVH server core, so closing.

(Another consideration for the future - if the setup wizard can detect and display local subnet as default netmask)