Markdown cell formatting tables

Markdown cell formatting (tables) does not quite work neither on github nor within my jupyter notebook coding environment. Why?

Did you solve this problem?

No, unfortunately

A software development team should also include people who will support the project’s quality and performance with those. The software development team should have both technical and business experts to ensure that the solution is working well. The software developer will be the main developer of the project, while a business manager will be responsible for its design and coding. A full-stack developer is a developer who has extensive knowledge in all layers of the architecture. In addition, a business manager will be responsible for the design and implementation of the software.