Add readme to run tests pod

node/tests/README.md

@@ -0,0 +1,17 @@
+# Tests overview
+
+This module contains was designed as a binary crate with the tests to be run against the nodes running in kubernetes. This tests also run inside the same k8s cluster as the nodes in a separate Pod. 
+
+## How to run the tests Pod
+
+1. First you have to generate the executable for the `tester` to use it inside the kubernetes Pod. To do this use the following command:
+    > This could take a while but it'll be necessary only for the first time, if you already ran it, then skip this step and go ahead with the next one.
+
+    ```
+    make docker_build_tester
+    ```
+2. Use the following command to run the tests. This command will make a deployment, creating a pod in the kubernetes cluster and run the tests inside it
+   ```
+   make start_k8s_tests
+   ```
+