Update spec/packs_spec.rb

Co-authored-by: Teal Stannard <teal.stannard@gusto.com>

Author: ashleywillard

spec/packs_spec.rb

@@ -892,7 +892,7 @@ def write_codeownership_config
       end
 
       context 'app has one pack with an outdated README_TODO.md' do
-        it 'overwrites the README_TODO.md' do
+        it 'deletes the README_TODO.md and adds a README' do
           write_file('app/services/foo.rb')
           write_package_yml('packs/organisms')
           write_file('packs/organisms/README_TODO.md', 'This is outdated')