1)
What is the meaning of "va'Yoshev Sham Re'evim"?
1.
Radak: Those who were hungry elsewhere, He settled them in that place, as if due to them it became a good place to live.
2)
Why does it say "va'Ychonenu Ir Moshav"?
1.
Radak, Malbim: He established there a settled city. People came from here and there - the hungry that Hashem desired.