update readme to include make run_dev explanation
@@ -42,6 +42,11 @@ make run_poseidon
```
This first builds poseidon, then runs it. After it finishes running, the container is removed.
+To populate the current volume with the contents of the containers' "poseidonWork/" directory, run:
+```
+make run_dev
+```
+
To run poseidon with sh as entrypoing, run:
```
make run_sh
