Help deciphering this knitting pattern, please
I'm fairly new to knitting, and I'm attempting my first non-linear (aka not a scarf) thing, by knitting a sweater for one of my dogs. I'm following the pattern here (tried to post the link, but wasn't able to...only including relevant part of pattern):
Using smaller needles, CO 48 sts.
Row 1: [WS] Sl 1, p1, *k2, p2* repeat from * to last 2 sts, p1, k1.
Row 2: [RS] Sl 1, k1, *p2, k2* to end.
Repeat rows 1 and 2 until neck measures 1.5 inches, ending with a WS row. Change to larger needle.
Row 1: ]RS]: Sl 1, k1, m1, work sts as they appear until 2 sts remain on L needle, m1, k2.
Row 2: [WS]: Sl 1, p1, k1, work rib sts as they appear to last 3 sts, k1, p1, k1.
Row 3: [RS]: Sl 1, k1 m1, k1, work rib sts as they appear to last 3 sts, k3.
Row 4 [WS]: Sl 1, k2, work rib sts as they appear to last 4 sts, k2, p1, k1.
Repeat m1 increase on each edge of RS rows as established 10 times, sl 1, and k last st to maintain selvedges.
Continue to work the rib sts as established. When increases are complete you will have 70 sts.
Work pattern as established until piece measures 4.5 inches from beginning, ending with a WS row.
I'm in the first body shaping phase of this project. I'm a little confused, first of all, why you don't increase on both ends as you do in the first RS row (see Row 3 instructions). Is this just a typo? Also, I'm a little confused at what the pattern means by "Repeat m1 increase on each edge of RS rows as established 10 times, sl 1, and k last st to maintain selvedges." I get that I'm supposed to increase (at both ends?) for each RS row, and that I need to slip the first stitch and knit the last stitch, but how do I go about doing that? Because the instructions for both of the RS rows in this section are slightly different (especially towards the ends). This may seem like a dumb question, but any help any of you can provide would be great. Thanks!