go.blog: add last minute talk by Josh to OSCON blog post
go.blog: add last minute talk by Josh to OSCON blog post

LGTM=josharian, adg
R=adg, josharian
CC=golang-codereviews
https://codereview.appspot.com/117020043

bryanxu/go-zh.blog,webfd/go-zh.blog,webfd/go-zh.blog,bryanxu/go-zh.blog,d0f/go-zh.blog,d0f/go-zh.blog