Update README.md

Training set image of dataframe.head() added, still needs other benchmarks

README.md

@@ -34,7 +34,11 @@ Training Set Preparation and Formatting:
 
 4.	Shuffle recipes_train using sample(frac=1) with random.seed(42)
 
-5.	Index the first 15,000 rows as the 'train' set and 15k-20k as the 'val' set then tokenize 'instruction'  with map function 
+5.	Index the first 15,000 rows as the 'train' set and 15k-20k as the 'val' set then tokenize 'instruction'  with map function
+
+<p align="center">
+  <img src="./training-set.png" alt="training-set" width="800" style="margin-top: 10px;"/>
+</p>
 
 **3. Training Method**