added a bit more info on test program.

README.md

@@ -21,6 +21,11 @@ mkdir build; cd build; cmake ..; make
 rng.rinit(170); // seed value must be in range 0 to 900000000
 float randomNumber = rng.uni();
 ```
+# Test Program
+
+The test program will out put a single test value from a seed of `170` which should give a value of `0.687533`
+
+It then outputs a list of 128 random numbers from that seed.
 
 # Thanks