Fix typo ActiveSuppport -> ActiveSupport

activesupport/CHANGELOG.md

@@ -287,7 +287,7 @@
 
     *Jan Habermann*, *Xavier Noria*
 
-*   Deprecate `ActiveSupport::Multibyte::Unicode#pack_graphemes(array)` and `ActiveSuppport::Multibyte::Unicode#unpack_graphemes(string)`
+*   Deprecate `ActiveSupport::Multibyte::Unicode#pack_graphemes(array)` and `ActiveSupport::Multibyte::Unicode#unpack_graphemes(string)`
     in favor of `array.flatten.pack("U*")` and `string.scan(/\X/).map(&:codepoints)`, respectively.
 
     *Francesco Rodríguez*
@@ -305,7 +305,7 @@
 
     *Edouard Chin*
 
-*   Deprecate `ActiveSupport::Multibyte::Unicode#normalize` and `ActiveSuppport::Multibyte::Chars#normalize`
+*   Deprecate `ActiveSupport::Multibyte::Unicode#normalize` and `ActiveSupport::Multibyte::Chars#normalize`
     in favor of `String#unicode_normalize`
 
     *Francesco Rodríguez*