OpenMC installation

Please try to get OpenMC installed on your computer. This can be done through either Docker or GitHub. Tell us if you struggle, and we'll help:-) 

For Docker installation, see:

https://github.com/sindrehk/FYS4580/blob/master/OpenMC%20Installation%20Instructions.pages

and/or "Installing with Docker" here:

https://docs.openmc.org/en/latest/quickinstall.html?highlight=Docker#installing-on-linux-mac-windows-with-docker

For installation from Source (GitHub), see:

https://docs.openmc.org/en/latest/quickinstall.html?highlight=Docker#installing-from-source-on-linux-or-mac-os-x

You have to have python3, and note that you should run "pip3 install  ." instead of "pip install .".

After installing: 

Go through the "Modeling a Pin-Cell" example here (until you reach the exercise "The cross_sections.xml file"): https://docs.openmc.org/en/latest/examples/pincell.html 

This is both to test that OpenMC works, and to learn the basics of OpenMC.