Update README.md

1 files changed, 6 insertions, 0 deletions

diff --git a/README.md b/README.md
index 0c5e90b..7b2a451 100644
--- a/README.md
+++ b/README.md
@@ -211,6 +211,12 @@ Run the test suite from the net-ssh directory with the following command:
 bundle exec rake test
 ```
 
+NOTE : you can run test on all ruby versions with docker :
+
+```
+docker-compose up --build
+```
+
 Run a single test file like this:
 
 ```sh