Add download links to README.md

README.md

@@ -14,6 +14,14 @@ forks of [mysql][mysql] and [mariadb][mariadb].
 [mysql]: http://github.com/Tokutek/mysql
 [mariadb]: http://github.com/Tokutek/mariadb
 
+Downloading
+-----------
+
+* [MySQL 5.5.40 + TokuDB](http://www.tokutek.com/tokudb-for-mysql/download-community/)
+* [MariaDB 5.5.40 + TokuDB](http://www.tokutek.com/tokudb-for-mysql/download-community/)
+* [MariaDB 10.0.15 + TokuDB](https://downloads.mariadb.org/mariadb/10.0.15/)
+* [Percona Server 5.6.21 + TokuDB](http://www.percona.com/downloads/)
+
 Building
 --------