[glue-wg] Second half of glue review

Hello GLUE group. I have added the second half of the GLUE 2.1 review to https://redmine.ogf.org/boards/43/topics/506?r=522 Note that I didn't really review it as an implementer; that would take much more time (although it would be an interesting exercise). So it's mostly grammar, consistency, readability, typos, etc. Not sure if I can remember to join the call on the 12th (I'll be remote) but I don't think you need me? Regards --jens