Added notes regarding the Icon Programming Language's public domain s…

…tatus

LICENSE

@@ -20,4 +20,18 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
-Note Well: The Icon Programming Language itself remains in the public domain.
+-----------------------------------------------------------------------------
+Note Well:
+
+The Icon Programming Language itself remains in the public domain.  See the
+following from https://github.com/gtownsend/icon/blob/master/README
+
+"This material is in the public domain.  You may use and copy this material
+freely.  This privilege extends to modifications, although any modified
+version of this system given to a third party should clearly identify your
+modifications as well as the original source.
+
+"The responsibility for the use of this material resides entirely with you.
+We make no warranty of any kind concerning this material, nor do we make
+any claim as to the suitability of Icon for any application."
+