Update README.md

Add english_Wolof.csv

Add english_French.csv

Add english_Swahili.csv

Add english_Amharic.csv

Add english_Ewe.csv

Add english_Oromo.csv

Add english_Shona.csv

Add english_Xhosa.csv

Add english_Yoruba.csv

Add english_Lingala.csv

Add english_Zulu.csv

Add english_Igbo_scores.csv

Add english_Hausa.csv

Add english_Sotho.csv

Add english_Kinyarwanda.csv

Add english_Luganda.csv

Add english_Twi.csv

Add comprehensive README with dataset configuration

initial commit