doc: document Go 1.10.4
doc: document Go 1.10.4

Change-Id: I7383e7d37a71defcad79fc662c4b4d1ca02189d1
Reviewed-on: https://go-review.googlesource.com/131336
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

CAFxX/go,golang/go,CAFxX/go,akutz/go,cloudflare/go,nawawi/go,cloudflare/go,cloudflare/go,CAFxX/go,nawawi/go,josharian/go,nawawi/go,josharian/go,akutz/go,golang/go,cloudflare/go,josharian/go,nawawi/go,akutz/go,nawawi/go,golang/go,golang/go,golang/go,josharian/go,akutz/go,cloudflare/go,nawawi/go,akutz/go,akutz/go,cloudflare/go,golang/go,josharian/go,akutz/go,CAFxX/go,CAFxX/go,akutz/go,cloudflare/go,golang/go,CAFxX/go,josharian/go,nawawi/go,josharian/go,golang/go,cloudflare/go,CAFxX/go,nawawi/go,CAFxX/go,josharian/go