Thread crochet edging for my cut offs

I love my new cut off capris but the edges were unraveling too much.  I didn't want to hem them, I liked the raw edge and the length, so I needed to secure them by sewing near the edge. Then I thought, as long as I was sewing, I could add some lace or something, but instead of buying some, I picked up a ball of burgundy thread and crocheted it.