Fixed some grammar and wordings
Fixed some grammar and wordings

Fixed some grammar and wording.
admpub/build-web-application-with-golang,astaxie/build-web-application-with-golang,admpub/build-web-application-with-golang,admpub/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,astaxie/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,admpub/build-web-application-with-golang,astaxie/build-web-application-with-golang