Add .torrent links to 4.0~beta1 release notes.

wiki/src/news/test_4.0-beta1.mdwn

@@ -91,12 +91,20 @@ Please, report any new problem to <tails-testers@boum.org> (public mailing list)
 Get Tails 4.0~beta1
 -------------------
 
+### Download via the web
+
 <a class="download-file use-mirror-pool" href="">Tails 4.0~beta1 ISO image</a>
 <span class="openpgp-small-link">[[OpenPGP signature|torrents/files/tails-amd64-4.0~beta1.iso.sig]]</span>
 
 <a class="download-file use-mirror-pool" href="">Tails 4.0~beta1 USB image</a>
 <span class="openpgp-small-link">[[OpenPGP signature|torrents/files/tails-amd64-4.0~beta1.img.sig]]</span>
 
+### Download via BitTorrent
+
+<a class="download-file" href="https://tails.boum.org/torrents/files/tails-amd64-4.0~beta1.iso.torrent" >Tails 4.0~beta1 ISO image torrent</a>
+
+<a class="download-file" href="https://tails.boum.org/torrents/files/tails-amd64-4.0~beta1.img.torrent" >Tails 4.0~beta1 USB image torrent</a>
+
 To install 4.0~beta1, follow our usual installation instructions:
 
   - [[Install from Windows|install/win/usb]]