Update the VTK-m requirements in README.md
The VTK-m requirements seem out of date. For starters, it says it works with a C++11 compiler when we now need a C++14 compile. I'm sure other dependencies need to be updated.
System updates will be applied on Nov 25th between 7am and 9am, EST (UTC-05:00). This site will have intermittent downtime during that time.
The VTK-m requirements seem out of date. For starters, it says it works with a C++11 compiler when we now need a C++14 compile. I'm sure other dependencies need to be updated.