Update 05.2.md
Update 05.2.md

Project has not been updated for 5 years, recommending it makes no sense anymore
admpub/build-web-application-with-golang,admpub/build-web-application-with-golang,astaxie/build-web-application-with-golang,admpub/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,astaxie/build-web-application-with-golang,faxriddin/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,faxriddin/build-web-application-with-golang,songqii/build-web-application-with-golang,songqii/build-web-application-with-golang,admpub/build-web-application-with-golang,astaxie/build-web-application-with-golang