fix bool args according to python fire docs

README.md

@@ -372,7 +372,7 @@ Add below flag to train command above (and using LoRA)
 Add below flag to train command above (and using QLoRA)
 
 ```bash
---merge_lora --lora_model_dir="./completed-model" --load_in_8bit False --load_in_4bit False
+--merge_lora --lora_model_dir="./completed-model" --load_in_8bit=False --load_in_4bit=False
 ```
 
 ## Common Errors 🧰