Add 2019.2.3 release notes
<li><a href="#sustainable-open-source">Sustainable open source and a personal plea</a></li>
<li><a href="#2019.2.1">Staticcheck 2019.2.1 release notes</a></li>
<li><a href="#2019.2.2">Staticcheck 2019.2.2 release notes</a></li>
+ <li><a href="#2019.2.3">Staticcheck 2019.2.3 release notes</a></li>
</ul>
<h2 id="performance">Performance improvements</h2>
@@ -440,3 +441,11 @@ Dependencies:
This fixes an issue where <code>go get</code> would prefer an older commit over a newer released version due to the way versions sort.
</minor>
</ul>
+
+<h2 id="2019.2.3">Staticcheck 2019.2.3 release notes</h2>
+
+<p>
+ Staticcheck 2019.2.3 is a re-release of 2019.2.2.
+ Its pre-built binaries, which can be found on GitHub,
+ have been built with Go 1.13, to enable checking of code that uses language features introduced in Go 1.13.
+</p>
