doc: document Go 1.10.5

Change-Id: I11adca150ab795607b832fb354a3e065655e1020
Reviewed-on: https://go-review.googlesource.com/c/147179Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

doc/devel/release.html

@@ -91,6 +91,13 @@ See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.10.4">Go
 1.10.4 milestone</a> on our issue tracker for details.
 </p>
 
+<p>
+go1.10.5 (released 2018/11/02) includes fixes to the go command, linker, runtime
+and the <code>database/sql</code> package.
+See the <a href="https://github.com/golang/go/issues?q=milestone%3AGo1.10.5">Go
+1.10.5 milestone</a> on our issue tracker for details.
+</p>
+
 <h2 id="go1.9">go1.9 (released 2017/08/24)</h2>
 
 <p>