https://simpleisbetterthancomplex.com/tutorial/2016/07/22/how-to-extend-django-user-model.html
https://learn-cpp.org/
https://learn-cpp.org/en/Hello%2C_World%21
https://learn-cpp.org/en/Strings
https://learn-cpp.org/en/if-else
https://www.discudemy.com/feed/
https://etestinghub.com/
https://learn-html.org/
https://learn-html.org/en/Styles