Update README.md

README.md

 <<< Welcome to the Taiwanese Speech in the Wild Corpora Project >>>
 
-The first wave will have 4 copora, including
+The first wave will release 4 copora, including
 * NER-PhA-Vol1 6.5 hours
 * NER-Trs-Vol1 126 hours
 * NER-Auto-Vol1 306 hours