Add config names

README.md

@@ -5,6 +5,13 @@ language:
 pretty_name: English Valid Words List
 size_categories:
 - 100K<n<1M
+configs:
+- config_name: sorted_by_frequency
+  data_files: "valid_words_sorted_by_frequency.csv"
+- config_name: sorted_alphabetically
+  data_files: "valid_words_sorted_alphabetically.csv"
+- config_name: valid_words
+  data_files: "valid_words.txt"
 ---
 # English Valid Words