Abhi nuthalapati fix descriptions in streamlit_tutorial.ipynb

Streamlit is an open-source Python library that simplifies the process of creating and sharing beautiful, custom web apps for machine learning and data science. In essence, it allows data scientists and developers to turn data analysis scripts into interactive web applications quickly, without the need for extensive knowledge of web development. Streamlit's ease of use, flexibility, and interactivity have made it popular among data professionals for building and deploying data-driven applications.