Fix typo in train split name (#3751)

* Fix typo in README guide

* Fix split naming and table alignment in README guide

* Fix split naming and table alignment in all datasets

* Fix previously malformed dataset cards

* Fix previously malformed dataset cards

Commit from https://github.com/huggingface/datasets/commit/af6e54febe3b822118dfed28ddb797d8350e5d27

README.md

@@ -94,9 +94,10 @@ Data has two fields:
 ### Data Splits
 
 The dataset is divided into two splits. All the headlines are scraped from news websites on the internet.
-|                            | Tain   | Valid | 
-| -----                      | ------ | ----- |
-| Input Sentences            |  5167  | 1293  |
+
+|                 |   train | validation | 
+|-----------------|--------:|-----------:|
+| Input Sentences |    5167 |       1293 |
 
 ## Dataset Creation
 
@@ -157,7 +158,7 @@ cc-by-sa-4.0
 
 ### Citation Information
 
-[More Information Needed]
+https://www.kaggle.com/disisbig/kannada-news-dataset
 
 ### Contributions