Updated to add link to repo
Updated to add link to repo

Added a link to "this repository" to point to this repo. README.md will be pulled into http://devicetree.org

Signed-off-by: Kanta Vekaria <ae794cff6c0c11be1be9c869e6aaf3ec0e3cf52e@linaro.org>
devicetree-org/devicetree-specification,kvekaria/devicetree-specification