Amy also has this info in the techniques section under i-cord.
How to attach i-cord to a garment
*Knit all of the i-cord stitches in the row, except the last stitch. Slip the last stitch. Knit a stitch from the garment (or pick up a stich along edge, if no live stitches). Passed slipped stitch over garment stitch. Prepare to work the next row, by sliding stitches to the other end of right needle (on a DPN or cable needle), or slipping all stitches from right needle onto left needle. Repeat from *.