ios_tests/readme.md in appium_lib-9.0.0 vs ios_tests/readme.md in appium_lib-9.1.0

@@ -1,8 +1,8 @@
 ruby_lib_ios
 =====================
 
-ruby_lib's iOS tests. Requires `Ruby 1.9.3` or better.
+ruby_lib's iOS tests. Requires `Ruby 2.2+` or better.
 
 - `rake install` Install gems required to run the tests.
 - `rake ios` Run all tests.
 - `rake` Run all the test. Same as `rake ios`
 - `rake ios['ios/element/generic']` Run a single test.