chore: improve readme examples

Author: RamonGiovane

README.md

@@ -53,10 +53,10 @@ This is unsafe because it is highly prone to raise `IndexError`, `KeyError`, `Ty
 
 ### 😴 The safe (but boring) strategy:
 ```python
-machines: list | None = nasty_dict.get("machines", None)
+machines: list | None = nasty_dict.get("machines")
 machine: dict | None = next(iter(machines), None) if machines else None
-engine: dict | None = machine.get("engine", None) if machine is not None else None
-components: list | None: engine.get("components", None) if engine is not None else None
+engine: dict | None = machine.get("engine") if machine is not None else None
+components: list | None: engine.get("components") if engine is not None else None
 
 ```