diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 60c3432502..0cd9259d30 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -417,3 +417,6 @@ To resync our local notes use:
 ```
 $ git fetch origin refs/notes/bugs:refs/notes/bugs -f
 ```
+### Testing NetworkManager with nm-in-container script.
+
+See [the readme](tools/nm-in-container/README.md) for details.
diff --git a/tools/nm-in-container/README.md b/tools/nm-in-container/README.md
index 9d57df6c83..64f699eb46 100644
--- a/tools/nm-in-container/README.md
+++ b/tools/nm-in-container/README.md
@@ -6,4 +6,4 @@ privileged  podman container.  This is useful for testing NetworkManager for
 development.
 
 Try `./nm-in-container --help` to see options.  Inside the container, see the
-bash history for useful commands and  the hints in "/etc/motd".
+bash history for useful commands and read the hints in "/etc/motd".