Fix spelling mistake

Signed-off-by: Adam Li <adam2392@gmail.com>

Author: adam2392

doc/whats_new/v0.2.rst

@@ -11,7 +11,7 @@ Version 0.2
 This release is a major release, with many new features and improvements.
 For instance, we have added a new implementation of the extended isolation forest,
 enabled all decision trees to take advantage of ``partial_fit`` meaning trees have streaming
-capabilities. Moreover, we have added an analagous implementation of extra-trees for oblique-trees.
+capabilities. Moreover, we have added an analogous implementation of extra-trees for oblique-trees.
 Finally, this release includes a highly experimental feature for multivariate high-dimensional
 hypothesis testing using permutation forests and a feature importance testing forest.