Draft for blog post annoucement

[lauren...@gmail.com]

Dear all,

Please find the draft of the membership announcement and instructor training opportunities here: 

https://docs.google.com/document/d/1UIMGkx7KJ1lESl1bjapiKtaXfeq1kfvzy31aI8T62cI/edit?usp=sharing

Comments welcome. We'll wait until the Education and teaching page (https://bioconductor.org/help/education-training/) is updated  and the educationATbioconductor.org email is set up before posting. 

Best wishes,

Charlotte and Laurent