diff --git a/README.md b/README.md
index af0a8ed..79331ec 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Contains the ColumbusEnv.
 There exist two ways to implement new envs:
 
 - Subclassing ColumbusEnv and expanding _init_ and overriding _setup_.
-- Using the ColumbusConfigDefined with a desired configuration. This makes configuring ColumbusEnvs via ClusterWorks2-configs possible. (See ColumbusConfigDefinedExample.md for an example of how the parameters are supposed to look like (uses yaml format), I don't have time to write a better documentation right now...)
+- Using the ColumbusConfigDefined with a desired configuration. This makes configuring ColumbusEnvs via ClusterWorks2-configs possible. (See ColumbusConfigDefinedExample.yaml for an example of how the parameters are supposed to look like (uses yaml format), I don't have time to write a better documentation right now...) (To test this run 'python humanPlayer.py', select 5, give path to ColumbusConfigDefinedExample.yaml, select 0)
 
 ##### Some caveats / infos