[elpa] externals/async updated (71cc50f27f -> 3bd17d58e1)

[ELPA Syncer]

elpasync pushed a change to branch externals/async.

      from  71cc50f27f Merge pull request #166 from bcc32/update-repo-url
       new  aae9b1927c feat: implement reading messages sent from child process
       new  c5b1ff0b87 docs: improve documentation of async-send and 
async-receive
       new  a982ab7a9a docs: add note about how to use result of child 
async-send
       new  3bd17d58e1 Merge pull request #167 from 
Fuco1/feature/implement-child-messages


Summary of changes:
 async.el | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 66 insertions(+), 7 deletions(-)