Add: OpenTTD 1.9.0-RC2 news post (#69)

Author: TrueBrain

_posts/2019-03-24-1.9.0-RC2.md

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+---
+title: OpenTTD 1.9.0-RC2
+author: TrueBrain
+---
+
+OpenTTD 1.9.0-RC2 is now available, which fixes a bunch of issues found during RC1 playtesting.
+Full [changelog](https://proxy.binaries.openttd.org/openttd-releases/1.9.0-RC2/changelog.txt) and [download](https://www.openttd.org/downloads/openttd-releases/testing.html) can be found in the usual places.
+
+With one week left before release, please take the effort to test our latest Release Candidate, to find any issues that might have been introduced!
+Any issues can be reported in the other usual [place](https://github.com/OpenTTD/OpenTTD/issues).
+
+Additionally, if you are a translator, please see if [your language has any missing translations](https://translator.openttd.org/project/openttd-trunk).
+We greatly appreciate your contribution!
+
+Further, please cast your vote for the titlegame to be shipped with this release till Friday 29th March, 23:59 UTC.
+You can vote for as many of the entries you like.
+Send your vote to [info@openttd.org](mailto:info@openttd.org) or send a private message to [planetmaker on tt-forums.net](https://tt-forums.net/viewtopic.php?f=29&t=84827).
+A complete overview for all savegames can be [found here](https://devs.openttd.org/~planetmaker/public_html/titlegame/round1).