added v0.5.1 to timeline

Author: pyroscope

README.md

@@ -44,6 +44,7 @@ mailing list or the inofficial ``##rtorrent`` channel on ``irc.freenode.net``.
 
 ``Date   ``| Description
 :-------------------: | :----
+``27–May–2017`` | [pyrocore 0.5.1](https://github.com/pyroscope/pyrocore/releases/tag/v0.5.1) released.
 ``05–Mar–2017`` | Moving and over-hauling the docs finally done, including rTorrent-PS wiki pages and so on.
 ``02–May–2015`` | Started to move the documenation to [Read The Docs](http://pyrocore.readthedocs.org/).
 ``14–Mar–2015`` | Moved from [Google Code](https://code.google.com/p/pyroscope/ ) to [GitHub](https://github.com/pyroscope/pyroscope). Documentation will be in a limbo state and spread over both sites for some time, I'll try to reasonably cross-link.