Update README.md

Fix some formatting in text (tables).

README.md

@@ -38,38 +38,32 @@ An example from the dataset:
 
 
 The average word token count are provided below:
-Splits
-Total of tokens (no spelling marks):
-Train
-92,431,194
-Test
-4,876,739
 
-## 5.2 Data Fields
+## 5.2 Total of tokens (no spelling marks)**
+
+Train: 92,431,194.    
+Test: 4,876,739 (in another file).   
+
+## 5.3 Data Fields
 
 The data have several fields:
-AUTHOR: author of the text. It is anonymized for conversation authors.
-DATE: date on which the text was entered in the corpus.
-SENTENCE: text. It was automatically tokenized for sources other than conversations.
-SOURCE: source of the texts.
-TITLE: title of the text from which SENTENCE originates.
-TOKENS: number of tokens (excluding punctuation marks) of SENTENCE.
-TYPE: linguistic register of the text.
-
-## 5.3 Data Splits
-
-Size of downloaded dataset files:
-Size of the generated dataset:
-Total amount of disk used:
+
+  AUTHOR: author of the text. It is anonymized for conversation authors.   
+  DATE: date on which the text was entered in the corpus.    
+  SENTENCE: text. It was automatically tokenized for sources other than conversations.    
+  SOURCE: source of the texts.    
+  TITLE: title of the text from which SENTENCE originates.    
+  TOKENS: number of tokens (excluding punctuation marks) of SENTENCE.     
+  TYPE: linguistic register of the text.     
+
+## 5.4 Data Splits
+
 The mammut-corpus-venezuela dataset has 2 splits: train and test. Below are the statistics:
 
+Number of Instances in Split.  
 
-Dataset Split
-Number of Instances in Split
-Train
-2,983,302
-Test
-157,011
+Train: 2,983,302.   
+Test: 157,011.   
 
 # 6. Dataset Creation