Merge pull request dotnet#86 from graemechristie/update-getting-started-for-kvminstall-sh

Update Getting Started section with kvminstall.sh details

Author: davidfowl

README.md

@@ -30,6 +30,11 @@ The easiest way to get the KVM on Windows is to run the following command:
 ```powershell
 @powershell -NoProfile -ExecutionPolicy unrestricted -Command "iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/aspnet/Home/master/kvminstall.ps1'))"
 ```
+or on OSX/Linux:
+```
+curl https://raw.githubusercontent.com/aspnet/Home/master/kvminstall.sh | sh && source ~/.kre/kvm/kvm.sh
+```
+
 This downloads KVM from this repository and puts it on your machine. Alternatively, you you could clone the repo and get it:
 * Clone the repository
 * On the command line execute
@@ -122,4 +127,4 @@ Currently the BCL is split into some fairly fine grained packages, which was one
 
 # Feedback
 
-Check out the [contributing](https://github.com/aspnet/Home/blob/master/CONTRIBUTING.md) page to see the best places to log issues and start discussions.
+Check out the [contributing](https://github.com/aspnet/Home/blob/master/CONTRIBUTING.md) page to see the best places to log issues and start discussions.