I have completed the knitting on "Mary's summer bag" from the Knit Picks free library. I do not understand the directions for completing the bag. It says "use the ridge as your fold mark and fold the band to the right side of bag. Place the two knotted straps under the fold--each knot threaded through the strap holes in band (one knotted end on either side--see illustration (NO HELP TO ME). Sew the flaop down (while holding the straps in place) by weaving a seam just above the start of the ruffle. What do they mean by "weaving"