Update README.md with setup instructions.
# cFE
+
+This repository contains the code for cFE, NASA's core Flight Executive. It also contains a number of submodules including OSAL, example "lab" applications, and mission ready applications. Together, these repositories constitute the core Flight System (cFS).
+
+The official releases are tagged and assigned a version number. Applications (in the `apps` directory) that have the `_lab` postfix or `sample_` prefix are not intended to be used for flight.
+
+## More Information
+
+Official cFS page: [http://cfs.gsfc.nasa.gov](http://cfs.gsfc.nasa.gov)
+Community cFS page: [http://coreflightsystem.org](http://coreflightsystem.org)
+
+## Setup
+
+We suggest that users fork the repositories included here and modify as needed for their specific missions.
+
+To setup cFS directly from the latest release:
+
+ git clone --branch 6.5.0a https://github.com/nasa/cFE.git
+ cd cFE
+ git submodule init
+ git submodule update
+
+## Build and Run
+
+The latest release include sample applications and an example build target that uses the pc-linux platform support package (should run on most Linux distributions).
+
+To compile and run:
+
+ cd cFE
+ . ./setvars
+ cd build/cpu1
+ make config
+ make
+ cd exe
+ sudo ./core-linux.bin
