Update parallelism example readme

Fix typo, and add new video walkthrough.

examples/parallelism/README.md

@@ -1,9 +1,9 @@
 # Parallelism
 
-In this example we go over Burr's parallelism capabilities. It is based on the documentation (https://burr.dagworks.io/pull/370/concepts/parallelism/), demonstrating the `MapStates` capabilities.
+In this example we go over Burr's parallelism capabilities. It is based on the documentation (https://burr.dagworks.io/concepts/parallelism/), demonstrating the `MapStates` capabilities.
 
 See [the notebook](./notebook.ipynb) for the full example. Or <a target="_blank" href="https://colab.research.google.com/github/dagworks-inc/burr/blob/main/examples/parallelism/notebook.ipynb">
   <img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"/>
 </a>
 
-You can follow along with this [Loom video](https://www.loom.com/share/a871abe84f974a499d7fb5bae42c35ae)
+You can follow along with this [youtube video](https://youtu.be/G7lw63IBSmY)

examples/parallelism/notebook.ipynb

@@ -8,7 +8,9 @@
     "<a target=\"_blank\" href=\"https://colab.research.google.com/github/dagworks-inc/burr/blob/main/examples/parallelism/notebook.ipynb\">\n",
     "  <img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/>\n",
     "</a> \n",
-    "or <a target=\"_blank\" href=\"https://www.github.com/dagworks-inc/burr/tree/main/examples/parallelism/notebook.ipynb\">view source</a>"
+    "or <a target=\"_blank\" href=\"https://www.github.com/dagworks-inc/burr/tree/main/examples/parallelism/notebook.ipynb\">view source</a>\n",
+    "\n",
+    "For a video walkthrough of this notebook <a href=\"https://youtu.be/G7lw63IBSmY\">click here</a>."
    ]
   },
   {
@@ -128,10 +130,20 @@
    "source": [
     "# if in google collab we need to expose the port\n",
     "from google.colab import output\n",
-    "# output.serve_kernel_port_as_iframe(7241) # can expose as an iframe directly\n",
     "output.serve_kernel_port_as_window(7241) # can expose as a new tab -- take note of the URL and provide it below."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f3e74f3e-db80-436c-ac67-10078e7965de",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# can expose as an iframe directly\n",
+    "output.serve_kernel_port_as_iframe(7241) "
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 79,