add Django course

fix problem visiblity of 'activity_main.xml'

fix problem visiblity of 'activity_main.xml'

project zip file

do some exercieses about constraint layout, linear layout

start in course of Angular Charts with some examples: 'signals',...

start and finish course of drag and drop with material angular of todo tasks

add README.md file

add other components: 'home', 'about us', 'header', 'footer', 'contact us'. Add also CRUD system of To-Dos

add edit and remove in todo project

add course of Angular with start in to do project

add supervise learning > Regression > ['gradient_descent', 'multi_line_regression', 'pearson_correlation_coefficient']

add courses of AI & Cybersecurity exactly web security

add course of mobile dev, database, modeling and simulation

update GitHub cours