But why? Out of the box you have build-in backends for Django Template Language (and Jinja2 as an alternative). Django’s own template system is really powerful, and for many years it was more than enough in terms of building websites.
According to official Django Web Framework documentation it’s pronounced JANG-oh, which rhymes with FANG-oh, the “D” is silent. Hearing this first to mind comes a movie from 2012. But actually the project is named after jazz musician Django Reinhardt (1910-1953).