fix typo

Author: basnijholt

docs/source/faq.rst

@@ -80,8 +80,8 @@ Adaptive is much more simple-minded and it relies only on the local properties o
 We'd say that Bayesian modeling is good for really computationally expensive data, regular grids for really cheap data, and local adaptive algorithms are somewhere in the middle.
 
 
-What is the difference with Kringing?
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+What is the difference with Kriging?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 XXX: add answer!