Fix the example of `Array#intersection` in the document [ci skip]
MODIFY
mrbgems/mruby-array-ext/mrblib/array.rb
mrbgems/mruby-array-ext/mrblib/array.rb
@@ -178,10 +178,10 @@ class Array
# ary.intersection(other_ary,...) -> new_ary
#
# Set Intersection---Returns a new array containing elements common to
- # this array and <i>other_ary</i>, removing duplicates.
+ # this array and <i>other_ary</i>s, removing duplicates. The order is
+ # preserved from the original array.
#
- # ["a", "b", "c"].union(["c", "d", "a"], ["a", "c", "e"])
- # #=> ["a", "b", "c", "d", "e"]
+ # [1, 2, 3].intersection([3, 4, 1], [1, 3, 5]) #=> [1, 3]
#
def intersection(*args)
ary = self

Fix the example of `Array#intersection` in the document [ci skip]