Add en/0.2.8.md syntax highlighting
Add en/0.2.8.md syntax highlighting

admpub/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,astaxie/build-web-application-with-golang,astaxie/build-web-application-with-golang,songqii/build-web-application-with-golang,songqii/build-web-application-with-golang,admpub/build-web-application-with-golang,admpub/build-web-application-with-golang,WangKaimin/build-web-application-with-golang,admpub/build-web-application-with-golang,faxriddin/build-web-application-with-golang,astaxie/build-web-application-with-golang,faxriddin/build-web-application-with-golang