Add note about restarting kernel if AWQModifier errors occur

- Users may be running cached old code
- Add reminder to restart kernel and rerun cells
- AWQModifier() works without parameters

quantize_to_awq_colab.ipynb

@@ -18,7 +18,9 @@
         "- Native vLLM integration (better compatibility)\n",
         "- Supports advanced features (pruning, combined modifiers)\n",
         "- Actively maintained by vLLM team\n",
-        "- Optimized for vLLM inference engine\n"
+        "- Optimized for vLLM inference engine\n",
+        "\n",
+        "**⚠️ IMPORTANT:** If you see errors about `AWQModifier` parameters, **restart the kernel** (Runtime → Restart runtime) and run all cells from the beginning. The notebook uses `AWQModifier()` without parameters (default 4-bit AWQ).\n"
       ]
     },
     {