More troubleshooting tips added

week8/day1.ipynb

@@ -187,7 +187,11 @@
     "\n",
     "This is how you could package your AI service behind an API to be used in a Production System.\n",
     "\n",
-    "You can also build REST endpoints easily, although we won't cover that as we'll be calling direct from Python."
+    "You can also build REST endpoints easily, although we won't cover that as we'll be calling direct from Python.\n",
+    "\n",
+    "## Important note:\n",
+    "\n",
+    "On the next line, I call `modal deploy` from within Jupyter lab; I've heard that on some versions of Windows this gives a strange unicode error because modal prints emojis to the output which can't be displayed. If that happens to you, simply use an Anaconda Prompt window or a Powershell instead, with your environment activated, and type `modal deploy pricer_service` there. Follow the same approach the next time we do !modal deploy too."
    ]
   },
   {
@@ -227,6 +231,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# You can also run \"modal deploy pricer_service2\" at the command line in an activated environment\n",
     "!modal deploy pricer_service2"
    ]
   },