oops - fix link

Author: keflavich

README.rst

@@ -137,7 +137,7 @@ Badges
 .. _View on Github: https://github.com/astropy/astroquery/
 .. _docs: http://astroquery.readthedocs.org
 .. _Documentation: http://astroquery.readthedocs.org
-.. _first beta release: https://github.com/astropy/astroquery/tarball/v0.2
+.. _latest release: https://github.com/astropy/astroquery/tarball/v0.2
 .. _[email protected]: mailto:[email protected]
 .. _Adam Ginsburg: http://www.adamgginsburg.com
 .. _Blog: http://astropy.org/astroquery-blog