Fixed a couple of typos in the introduction to Freelance-Rates exercise.
It fixes a couple more that I found after the first commit. The pr won’t update I guess since it’s closed.
There is another thread about fixing these, but didn’t actually fix this one.
Mentioned here and here
I found these after already making my fork and trying to push.
Thanks for helping out. I reopened your pr. please submit as many typos as you can in one PR, so it is not too crowded
Updated with a couple more fixes. Ready for review now.