Fix typo

Author: stefanv

doc/install.rst

@@ -38,7 +38,7 @@ numpydoc_citation_re : str
   should be mangled to avoid conflicts due to
   duplication across the documentation.  Defaults
   to ``[\w-]+``.
-numpydoc_use_blockqutoes : bool
+numpydoc_use_blockquotes : bool
   Until version 0.8, parameter definitions were shown as blockquotes, rather
   than in a definition list.  If your styling requires blockquotes, switch
   this config option to True.  This option will be removed in version 0.10.