Update transcription-translation.md

Add note for beta testing ASR MT features

source/transcription-translation.md

@@ -66,3 +66,7 @@ spoken by a smaller number of speakers, please consider whether there is an
 alternative name of the language. For example, the Bura language spoken in
 Northern Nigeria is listed as Bura-Pabir, but is also known to some people as
 Bourrah, Babir, and other names.
+
+<p class="note">
+  ASR and MT are not yet available to all users. We are currently looking for beta testers of this new feature who will get access to these automatic transcription and translation features. If you’d like to join our beta testing program, please <a class="reference" href="https://www.kobotoolbox.org/contact/?hs_ticket_category=asr_mt_access">send us a message with your username and server</a>, and what you'd like to use these features for. We are very much interested in feedback about these new features so thanks in advance for testing them!
+</p>