Revise README for AI Engineering & Data Science focus

adding the chaging to file structure

addinh the graph chart to the streamlit webpage

adding the streamlit operations

adding the visualisation

adding the cleaning of data and EDA

fecthing data from api and coinverting it into df using pandas

addding file for api workshop

arranging the file structure if the folder

adding some change in folder structure and assignment for api ethiocal security

adding the role of enviroment variable for api keys

adding 2 first points of the topic

adding file to learn the study and ethics

adding the answers to .md file

adding the python implementation of assignment