Some people make a whole career out of getting these slashes to go away. These directions will call for some intuition on your part. This is the least positive part about this heel. It can gap. Pick up some loose looking wayward yarn to help lesson the problem.
Some people make a career out of filling in that gap.
Let me know if I can add your name to theirs. Circle the ones for your size, and take a minute to write down the rest of the short rows you will be working. Continue in this manner until you reach first the LM , all heel sts have been worked, and you finish with a SRW at the end of a purl row. Make RM your beginning of the round, and remove all other markers.