Ability to locally generate pdfs instead of relying on travis

[purukaushik]

Can be done by containerizing the make operation with Docker, isolating the TeX installation stuff and directing output from docker container to local directory.

[dahrens]

With pandoc and latex installed you can also just use pandoc on the command line as you do already in your MAKEFILE. This way no additional layer of complexity is necessary.

Thanks for your efforts on this template! 👍