Update README.md

Co-authored-by: Martchus <martchus@gmx.net>

README.md

@@ -31,7 +31,7 @@ consuming these tools.
 
 ```bash
 # Run a container with the project mounted in it.
-podman run -it -v $(pwd):/host/project --workdir /host/project opensuse/leap:latest bash
+podman run -it -v "$PWD:/host/project" --workdir /host/project opensuse/leap:latest bash
 
 # Inside the container
 zypper in -y perl-App-cpanminus make gcc