Update docs/async.rst
Update docs/async.rst

putting "lambda chunk: body.put(chunk)" makes it feel like there is something misterious going on (are we putting "chunk" is some closure or something?).

And I found it difficult to understand without starting or running the worker.
StdioA/bottle,prologic/bottle,taisa007/bottle-ja,catroot/bottle,Inndy/bottle,hayate/bottle,fkazimierczak/bottle,ericfrederich/bottle,defnull/bottle,taisa007/bottle-ja,hkmshb/bottle,mefyl/bottle,catroot/bottle,SamuelMarks/bottle,kevintaw/bottle,kevinmel2000/bottle,kevinmel2000/bottle,samstav/bottle,samstav/bottle,enzzc/bottle,bottlepy/bottle,mefyl/bottle,wangjun/bottle,hayate/bottle,SmithSamuelM/bottle,wangjun/bottle,khirayama/bottle,CentricWebEstate/bottle,khirayama/bottle,prologic/bottle,CentricWebEstate/bottle,gaotongfei/bottle,Kjuly/bottle,defnull/bottle,Inndy/bottle,oz123/bottle,gaotongfei/bottle,AWFU/bottle,myzhan/bottle,ericfrederich/bottle,ifduyue/bottle,Kjuly/bottle,enzzc/bottle,StdioA/bottle,bottlepy/bottle,SmithSamuelM/bottle,kevintaw/bottle,mrdon/bottle,hkmshb/bottle,mrdon/bottle,SamuelMarks/bottle,oz123/bottle,ifduyue/bottle,myzhan/bottle,fkazimierczak/bottle,AWFU/bottle