Summarize the plot and main themes of Ama Ata Aidoo's 'The Girl Who Can'.

"The Girl Who Can" by Ama Ata Aidoo is a short story narrated by Adjoa, a young girl in a Ghanaian village. Adjoa's grandmother and mother constantly criticize her thin, "spindly" legs, believing they are not suitable for traditional female roles or for attracting a husband. Despite this pressure, Adjoa discovers her legs are strong and fast, excelling in running at school. Through her athletic talent and the encouragement of her teacher, Adjoa gains self-confidence and challenges the narrow gender expectations of her community, finding her own path to empowerment and self-worth.