Update README.md

README.md

 # ***NLP course project***
 ***Almouhannad Hafez + Mariam Khierbek***
 
+## ***Contents***  
 **[Description](#description)**  
 **[How to run](#how-to-run)**  
 **[Part1. Data preprocessing](#part1-data-preprocessing)**  
@@ -43,7 +44,10 @@
 
 ## ***Part1. Data preprocessing***
 **Files:**
-> **`1.Data_Preprocessing.ipynb`**  
+> **`1.1.Dataset_Overview.ipynb`**  
+- **Some interesting details about used dataset**
+
+> **`1.2.Data_Preprocessing.ipynb`**  
 - **Applying preprocessing steps on dataset, this includes:**
     1. Refactoring dataset schema
     1. Handling nulls/duplicates
@@ -77,12 +81,7 @@
     1. Testing ***Nouns*** only
 
 **`3.3.N-Grams.ipynb`**  
-- **Applying classification task using n-gram to perform task using only TF-IDF with different grams, this includes:**
-    1. `1-Gram`
-    1. `2-Gram`
-    1. `3-Gram`
-    1. `4-Gram`
-    1. `5-Gram`
+- **Applying classification task using n-gram to perform task using only TF-IDF with different grams**
 
 ## ***Results***
 | Case\\Criterion         | Accuracy(Train) | Accuracy(Test) | Precision(Test-Average) | Recall(Test-Average) | F1-Score(Test-Average) |