[release-branch.go1.11] doc: document Go 1.11.10

Change-Id: Icca4495f727e3921b717a4bbb441cd832d321d46
Reviewed-on: https://go-review.googlesource.com/c/go/+/175439Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
(cherry picked from commit e1f9e701)
Reviewed-on: https://go-review.googlesource.com/c/go/+/175442Reviewed-by: Andrew Bonventre <andybons@golang.org>

doc/devel/release.html

@@ -102,6 +102,12 @@ when linking programs that used cgo.
 Only Linux users who hit this issue need to update.
 </p>
 
+<p>
+go1.11.10 (released 2019/05/06) includes fixes to the runtime and the linker.
+See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.11.10">Go
+1.11.10 milestone</a> on our issue tracker for details.
+</p>
+
 <h2 id="go1.10">go1.10 (released 2018/02/16)</h2>
 
 <p>