Exercises G21

Description
When writing a text and checking for a spelling error,
incorrect words should be underlined and in red letters

Steps to reproduce
1. Navigate to appliction
2. check the spelling error check box and uncheck others options
3. Write a text

Expecting results
1. When writing a text incorrect words should be underlined and in red letters

Actual results
1. When writing a text incorrect words are not underlined and in red letters