Added category coloring pages

After lots of prompt tweaking, I figured out a good prompt for generating coloring pages and other prompts for generating the subjects for coloring pages.

I put these towards the keywords I wanted to start with and started pumping out pages.

Right now I'm targeting the following keywords:

• Shark coloring pages
• Mushroom coloring pages
• Star coloring pages
• Bowser coloring pages
• Spiderman coloring pages (my kids are big spidey fans right now)

No search engine traffic just yet, but I'm working on the internal structure of the site to make crawling it easier and trying to add text content to help as well.