Answer:
Arachne was known for creating beautiful tapestries and boasted about being better than Athena the goddess of Wisdom and Crafts at creating tapestries. Arachne challenged Athena and created an incredible tapestry showing the Gods abusing their power. Athena turned Arachne into a spider as punishment. Arachne gotten too cocky and thought she was better than the Gods and challenged Athena and was turned into a spider.
Summary- Arachne boasted about being better than Athena and Athena turned Arachne into a spider.