[release-branch.go1.13] doc: add Go 1.13 to release history

Change-Id: I3340561c0b17bf28d8d480e00f5bc8afb2a897ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/193042
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>

diff --git a/doc/contrib.html b/doc/contrib.html
index fc853a911936c59543b1e2915a1fbbb6566a59d9..5699f58fc78f76b67c217048ed6bac3a89253d6b 100644 (file)
--- a/doc/contrib.html
+++ b/doc/contrib.html
@@ -34,6 +34,7 @@ We encourage all Go users to subscribe to
 <p>A <a href="/doc/devel/release.html">summary</a> of the changes between Go releases. Notes for the major releases:</p>
 
 <ul>
+       <li><a href="/doc/go1.13">Go 1.13</a> <small>(September 2019)</small></li>
        <li><a href="/doc/go1.12">Go 1.12</a> <small>(February 2019)</small></li>
        <li><a href="/doc/go1.11">Go 1.11</a> <small>(August 2018)</small></li>
        <li><a href="/doc/go1.10">Go 1.10</a> <small>(February 2018)</small></li>