Merge pull request #3611 from jtpio/custom-widget-tutorial

Re-add the custom widget tutorial

Author: jasongrout

docs/source/examples/Widget Custom.ipynb

@@ -53,7 +53,7 @@
     "To create the environment, execute the following command:\n",
     "\n",
     "```bash\n",
-    "conda create -n ipyemail -c conda-forge jupyterlab jupyter-packaging cookiecutter nodejs yarn python\n",
+    "conda create -n ipyemail -c conda-forge jupyterlab cookiecutter nodejs yarn python\n",
     "```\n",
     "\n",
     "Then activate the environment with:\n",
@@ -127,7 +127,7 @@
     "# link your development version of the extension with JupyterLab\n",
     "jupyter labextension develop . --overwrite\n",
     "\n",
-    "# rebuild extension Typescript source after making changes\n",
+    "# rebuild extension TypeScript source after making changes\n",
     "yarn run build\n",
     "```\n",
     "\n",
@@ -138,17 +138,6 @@
     "yarn run watch\n",
     "```\n",
     "\n",
-    "\n",
-    "If you are using JupyterLab 2.x, you will need to install the `@jupyter-widgets/jupyterlab-manager` extension manually:\n",
-    "\n",
-    "```bash\n",
-    "# install the widget manager to display the widgets in JupyterLab\n",
-    "jupyter labextension install @jupyter-widgets/jupyterlab-manager --no-build\n",
-    "\n",
-    "# install the local extension\n",
-    "jupyter labextension install .\n",
-    "```\n",
-    "\n",
     "If you are using the Classic Notebook:\n",
     "\n",
     "```bash\n",

docs/source/index.rst

@@ -111,6 +111,7 @@ some custom widget packages built on top of the Jupyter Widgets framework.
     examples/Using Interact.ipynb
     examples/Widget Low Level.ipynb
     examples/Widget Asynchronous.ipynb
+    examples/Widget Custom.ipynb
     embedding.md
 
 .. toctree::