Did not like the beginning of the pattern.
Looks like cut off.

Changed the first 14 rows.

Compare the pictures. from pattern-page to my test in cotton.

For the shawl, I used 44 g of a Yarn, I had in my stash.

140 cm x 45 cm

Cast on of 10 stitches.

1. k2, yo, k2, yo, k2, yo, k2, yo, k2
2. and all back-rows purl.
3. k3, yo, k2, yo, k4, yo, k2, yo, k3
4. k4, yo, k2, yo, k6, yo, k2, yo, k4
5. k5, yo, k2, yo, k8, yo, k2, yo, k5
6. k6, yo, k2, yo, k10, yo, k2, yo, k6

etc

For the edging you need a mutlible of 7 stitches,
cast on 15 additional stitches and start pattern.