doc: fix link to 0.9.2 tar.gz release

Author: satra

doc/users/install.rst

@@ -10,7 +10,7 @@ Download
 --------
 
 Release 0.9.2: [`zip <https://github.com/nipy/nipype/archive/0.9.2.zip>`__ `tar.gz
-<https://github.com/nipy/nipype/archive/0.9.1.tar.gz>`__]
+<https://github.com/nipy/nipype/archive/0.9.2.tar.gz>`__]
 
 Development: [`zip <http://github.com/nipy/nipype/zipball/master>`__ `tar.gz
 <http://github.com/nipy/nipype/tarball/master>`__]