I'm stuck on pull request review

Hi guys,

I have followed the bot instruction already to create the description in the review. However, the bot didn’t triggered. Did I miss anything?

https://github.com/Wingless-Archangel/github-slideshow/pull/3

Don’t know how to solved it so just delete and redo everything until the pull request I put the comment within the request body at the same time and the bot allow me to go for the next step.