Add run example for hydra application

Author: gjbex

source-code/hydra/README.md

@@ -14,3 +14,23 @@ multiruns and so on.
    1. `config.yaml`: configuration file with the defaults.
    1. `distr/gauss.yaml`: configuration file for the Gaussian distirubtion.
    1. `distr/uniform.yaml`: configuration file for the uniform distirubtion.
+
+## How to use it?
+Run with configuratino file settings:
+```bash
+$ ./gen_rand.py
+```
+To increase the number of random values:
+```bash
+$ ./gen_rand.py 10
+```
+
+To use a uniform distribution:
+```bash
+$ ./gen_rand.py distr=uniform
+```
+
+To use a uniform distribution between -1 and 0:
+```bash
+$ ./gen_rand.py distr=uniform distr.a=-1.0 distr.b=0.0
+```