squash: Fix typo

Co-authored-by: Cristian Le <cristian.le@mpsd.mpg.de>

docs/features.rst

@@ -201,7 +201,7 @@ Sometimes it is necessary to select node from the metadata tree
 even though it is not a leaf. For example, when virtual tests are
 created from a parent test but one wants to keep the parent available
 as a test as well. On the other hand, one might want to hide leaf node,
-instead of deleting it completely. To do so, one can set fhe directive::
+instead of deleting it completely. To do so, one can set the directive::
 
     /:
         select: boolean