Update README.md

README.md

@@ -55,7 +55,7 @@ A pair of a character and a play  denotes a unique user in the federation.
 
 The dataset contains only train split. The split in the paper happens at each node only (no centralized dataset). 
 The dataset is comprised of columns: 
-* `character_id` - id denoting a pair of character + play (node in federated learning settings)
+* `character_id`: str - id denoting a pair of character + play (node in federated learning settings)
 * `x`: str - text of 80 characters
 * `y`: str - single character following the `x` 
 Please note that the data is temporal. Therefore, caution is needed when dividing it so as not to leak the information from the train set.