如何使用OpenCover和ReportGenerator来查看单元测试覆盖率结果?

I'm a noob to using both OpenCover and ReportGenerator and I'm struggling a bit in understanding how to get them working. I'm using VS.NET 2012 'Professional' which means I don't have access to the built in unit test coverage tooling. I also have ReSharper installed, but don't want to pay for another utility in 'dotCover'I'm a noob to using both OpenCover and ReportGe