This rule should be improved but here is a decent base.
<rule id="ID" name=""Well" instead of "good".">
<pattern>
<token>doing</token>
<token>good</token>
</pattern>
<message>Replace "well" with "good" where appropriate. "I<suggestion>m doing well" instead of "I</suggestion>m doing good".</message>
<url>http://www.quickanddirtytips.com/education/grammar/good-versus-well</url>
<example correction=''>I'm <marker>doing good</marker>.</example>
<example>I'm doing well.</example>
</rule>