Update README.md

Author: Shraman-jain

Web_app/README.md

@@ -51,7 +51,7 @@ For new data generation for <b>sentiment analysis</b> and <b>recommendation syst
    ```
 3. **Run the similarity_model generating script** to find out similarity we have made a model which we will use in our webapp. Open and execute the Jupyter notebook
 
-     ***Note: you have to run this model.ipynb as this will download similarity.pkl which is the model we use in Streamlit Webapp***
+     ***Note: you have to necessarily run this model.ipynb as this will download similarity.pkl which is the model we use in Streamlit Webapp***
 
    ```bash
    jupyter notebook notebooks/model.ipynb