Spell Check
All you have to do is click on the spell-check button:

Then it will put red squiggly underlines under the misspelled words it finds. (Much like Microsoft Word.)

Then when you click on each of the words it will give a list of suggestions. When you click on a suggestion it will replace your misspelled word with a correctly spelled one.

After you have corrected all the words it will go back into edit mode. (Or, you can click the spelling checker button again to put it out of spelling mode and back into edit mode.)
