Add Vienna, Austria Meetup (#3343)
Add Vienna, Austria Meetup (#3343)

Co-authored-by: sarit <2c1f6b79566869d6e1424dc48900866335318854@duda.co>
jmelfi/awesome-go,sadlil/awesome-go,avelino/awesome-go,pconcepcion/awesome-go,theckman/awesome-go