Fixing typo in spelling of rollover
rolllover -> rollover
@@ -84,7 +84,7 @@ POST /my_alias/_rollover/my_new_index_name
// TEST[s/^/PUT my_old_index_name\nPUT my_old_index_name\/_alias\/my_alias\n/]
[float]
-=== Using date math with the rolllover API
+=== Using date math with the rollover API
It can be useful to use <<date-math-index-names,date math>> to name the
rollover index according to the date that the index rolled over, e.g.
