Add terminal walkthrough assets

docs/install.md

@@ -37,6 +37,8 @@ Use these command forms consistently:
 
 Use the package directly without a manual install:
 
+If you are running from a repo checkout instead, replace `uvx --from pyro-mcp pyro` with `uv run pyro`.
+
 ### 1. Check the host first
 
 ```bash
@@ -101,7 +103,33 @@ deterministic structured result.
 If guest execution is unavailable, the command fails unless you explicitly pass
 `--allow-host-compat`.
 
+## 5. Optional demo proof point
+
+```bash
+uvx --from pyro-mcp pyro demo
+```
+
+`pyro demo` proves the one-shot create/start/exec/delete VM lifecycle works end to end.
+
+Example output:
+
+```json
+{
+  "cleanup": {
+    "deleted": true,
+    "reason": "post_exec_cleanup",
+    "vm_id": "..."
+  },
+  "command": "git --version",
+  "environment": "debian:12",
+  "execution_mode": "guest_vsock",
+  "exit_code": 0,
+  "stdout": "git version ...\n"
+}
+```
+
 For a fuller copy-pasteable transcript, see [first-run.md](first-run.md).
+When you are done evaluating and want to remove stale cached environments, run `pyro env prune`.
 
 ## Installed CLI