Blue Zig-Zag Crocheted Baby Blanket

When I made my niece a blanket for her birthday, her brother took it away from her and claimed it for himself.  I realized I needed to make one for him right away.
I had never followed a written pattern before so I thought I would try a zig-zag style.  I found this on the web and I loved the site.
Bernat Berella "4" Zig-Zag Afghan (not sure if you need to be a member to see, but eh, membership is free)