Great job, i'm reading it, i noticed a mistake here:
After the Zhou settled into sedentary agricultural communities, they became affiliated as a tributary state to the Zhou, a process that left them resentful of their new lords. Around the late 12th century BCE (-1150), as the Shang dynasty was facing external raids they could not defend against, the Zhou leaders decided that the Shang were unfit to rule and they should replace them.[5]
I think it should be "became affiliated as a tributary state to the Shang"
Also here:
King Wu was still quite young when he seized the state from the Shang dynasty. King Wen had a younger brother, who is only known as the duke of Zhou in historical records, who then served as an advisor to the young king.
Wasn't Duke of Zhou younger brother of King Wu, not King Wen? Also his name is listed as Ji Dan.