Check this one http://littlegreennotebook.com/2012/11/diy-shaker-style-cabinets-part-2.html/ .
I found paint form rollers are very easy to use and give no brushe strokes. Something like https://www.lowes.com/pd/WHIZZ-Cabinet-and-Door-10-Pack-4-in-Mini-Foam-Paint-Roller-Cover/3140735
Also use good paint you will get better results. Sherwin Williams is a good one.
