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

@@ -21,10 +21,10 @@ task_ids:
 - multi-class-classification
 - named-entity-recognition
 paperswithcode_id: limit
-pretty_name: Literal Motion in Text Dataset
+pretty_name: LiMiT
 ---
 
-# Dataset Card Creation Guide
+# Dataset Card for LiMiT
 
 ## Table of Contents
 - [Dataset Description](#dataset-description)
@@ -109,9 +109,9 @@ Example of one instance in the dataset
 
 The dataset is split into a `train`, and `test` split with the following sizes:
 
-|                            | Tain   | Valid |
-| -----                      | ------ | ----- |
-| Number of examples         | 23559  | 1000  |
+|                            | train | validation |
+| -----                      |------:|-----------:|
+| Number of examples         | 23559 |       1000 |
 
 ## Dataset Creation