Update pep-0778.rst

Co-authored-by: Hugo van Kemenade <[email protected]>

peps/pep-0778.rst

@@ -191,6 +191,7 @@ When a debugger wants to attach to a Python process, it follows these steps:
 4. Use the offsets to locate the debugger interface fields within that thread state
 
 5. Write control information:
+
    - Write python code to be executed into the ``debugger_script`` field in ``_PyRemoteDebuggerSupport``
    - Set ``debugger_pending_call`` flag in ``_PyRemoteDebuggerSupport``
    - Set ``_PY_EVAL_PLEASE_STOP_BIT`` in the ``eval_breaker`` field