Update README.md

README.md

@@ -47,7 +47,7 @@ Basic knowledge of Python programming language
 |[Practical_09_The_Role_Of_Machine_Learning_In_NLP.ipynb][09]| Supervised and unsupervised machine learning and its NLP applications |
 |[Practical_10_Sentiment_analysis.ipynb][10]| Sentiment analysis (VADER, sklearn, Random Forest Classifier, neural networks)|
 |[Practical_11_Unsupervised_Learning_and_Topic_modeling.ipynb][11]| Unsupervised machine learning and topic modelling |
-|[Practical_13_NLP_Ethics.ipynb][13]| NLP ethics (big data dangers, gender and racial bias, green NLP, privacy, crowdsourcing, text generation (GPT-2, GPT-3), chatbots |
+|[Practical_12_NLP_Ethics.ipynb][13]| NLP ethics (big data dangers, gender and racial bias, green NLP, privacy, crowdsourcing, text generation (GPT-2, GPT-3), chatbots |