Why is "אלה תולדות יעקב" the introductory phrase to the story of Yosef's sale?

The Rashbam on the meaning of "אלה תולדות יעקב", who actually sold Yosef (and the importance of pshat - if the Torah formulates something in a specific way it's to teach us something).

What does it mean that Yaakov wanted to live in tranquility and why does Hashem criticize him?