RSS feed description tag should include link to torrent page

User should be able to simply get to torrent page from it's RSS feed.

I don't know much about go but it should looks like something like this:
controllers/feed/rss.go line 39
```go
	Description: string(torrentJSON.Description) + "<br><br>---<br><a href=\"" + config.WebAddress() + "/view/" + strconv.FormatUint(uint64(torrentJSON.ID), 10) + "\">" + torrentJSON.Name + "</a>",
```