I had to delete the pattern other than the part in question. It's a copyright violation to post them..even free patterns. It's okay to post a few lines if you have a problem though and you should always post the pattern name and link if you have it.
Here's the link-
KFB - It means Knit Front and Back. It's an increase. Knitting Help has lots of videos at the tab at the top of the page. The increase page has KFB.