Merge pull request #634 from datacarpentry/genomics-r-beta

update development stage of R Genomics lesson

pages/lessons.md

@@ -173,7 +173,7 @@ More information about hosting and teaching a Genomics workshop can be found on
 
 Interested in teaching these materials? We have an [onboarding video](https://www.youtube.com/watch?v=zgdutO5tejo) and accompanying [slides](https://docs.google.com/presentation/d/1fLlT2lPv32DqCFpRPPdHZBNHiQTpK79wd5Z3nsFwL3s/) available to prepare Instructors to teach these lessons. After watching this video, please contact {{ site.dc_email }} so that we can record your status as an onboarded Instructor. Instructors who have completed onboarding will be given priority status for teaching at Centrally-Organised Data Carpentry Genomics workshops.
 
-Please note that workshop materials for working with Genomics data in R in "alpha" development.  These lessons are available for review and for informal teaching experiences, but are not yet part of The Carpentries' official lesson offerings.
+Please note that workshop materials for working with Genomics data in R in "beta" development.  These lessons are available for review and for informal teaching experiences, but are not yet part of The Carpentries' official lesson offerings.
 
 #### Lessons