Update kde.py

A small change to the documentation to correct a typo
Merge pull request #3542 from jesseengel/patch-1

kde.py Doc Typo
ENH: Add multivariate functionality in scipy integrate
MAINT: Clean up multivariate ctypes code
BUG: Fix bug that skips multivariate ctypes in some cases
BUG: Fix PEP8 style and failing speed test
Added known fail for speed guarantee
MAINT: Fix slight indentation bug
MAINT: rename testlib.c to test_multivariate.c
BUG: Fix file renaming bug from test_multivariate.c
Added known fail for speed guarantee
BUG: Fix file renaming bug from test_multivariate.c
BUG: retry stopped travis build
DOC: Rewrite multivariate C quadpack.py documentation
MAINT: Rebasing on master
Merge branch 'master' of https://github.com/scipy/scipy into cwrapping
MAINT: finish rebasing cwrapping
MAINT: finish rebasing cwrapping