Correct:
[…]
Instructions
Using 3.5 mm needles cast on 6 sts.
Row 1 (ws): Purl.
Row 2: K3, s3p wyif.
Row 3: K3, s3p wyif.
Row 4: K3, m1, s3p wyif.
Row 5: K3, p1, s3p, wyif.
Row 6: K3, k1, s3p wyif.
Row 7: K3, p1, s3p, wyif.
Row 8: K3, k1, m1, s3p wyif. 7 sts.
Row 9: K3, p2, s3p wyif.
Row 10: K3, k1, s1p wyif, yo, s3p wyif.
Row 11: K3, k2tog (yo and 1 st), s1p wyif, yo, s3p wyif.
Row 12: K3, k2tog, s1p wyif, yo, m1, s3p wyif. 8 sts.
Row 13: K3, s1p wyif, yo, k2tog, s1pwyif, yo, s3p wyif.
Row 14: K3, k2tog, s1p wyif, yo, k2tog,
s3p wyif.
Row 15: K3, s1p wyif, yo, k2tog, s1p wyif,
s3p wyif.
Row 16: K3, k2tog, s1p wyif, yo, k2tog, m1, s3p wyif. 9 sts.
Row 17: K3, k1, s1p wyif, yo, k2tog, s1p wyif, yo, s3p wyif.
Row 18: K3, k2tog, s1p wyif, yo, k2tog,
s1p wyif, yo, s3p wyif.
Row 19: K3, k2tog, s1p wyif, yo, k2tog,
s1p wyif, yo, s3p wyif.
Row 20: K3, k2tog, s1p wyif, yo, k2tog,
s1p wyif, yo, m1, s3p wyif. 10 sts.
Row 21: K3, (s1p wyif, yo, k2tog) 2 times,
s1p wyif, yo, s3p wyif.
Row 22: K3 (k2tog, s1p wyif, yo) 2 times, k2tog, s3p wyif.
Row 23: K3, (s1p wyif, yo, k2tog) 2 times,
s1p wyif, yo, s3p wyif.
Row 24: K3 (k2tog, s1p wyif, yo) 2 times, k2tog, m1, s3p wyif. 11 sts.
Row 25: K3, k1, (s1p wyif, yo, k2tog) 2 times, s1p wyif, yo, s3p wyif.