[x/blog] blog: add survey2018.article
[x/blog] blog: add survey2018.article

Change-Id: I5ff0b7a395eef71f890317eaa0e1de5bc3803a40
Reviewed-on: https://go-review.googlesource.com/c/148200
Reviewed-by: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@golang.org>
X-Blog-Commit: 1d507e4697ba87102dced043cc0221fdb711f064

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website