Adding tickets to Tornado sprint

Author: datapythonista

_posts/2018-04-10-tornado.md

@@ -15,6 +15,9 @@ on different bugs, including:
 - <https://github.com/tornadoweb/tornado/issues/1122>
 - <https://github.com/tornadoweb/tornado/issues/729>
 - <https://github.com/tornadoweb/tornado/issues/2140>
+- <https://github.com/tornadoweb/tornado/issues/1983>
+- <https://github.com/tornadoweb/tornado/issues/1981>
+- <https://github.com/tornadoweb/tornado/issues/1595>
 
 For first time contributors, we'll have a parallel track. We'll show a
 presentation about what's a pull request, and how to send one. And we'll