Add a sample overrides JSON file for our docs

Author: agriyakhetarpal

docs/conf.py

@@ -13,6 +13,13 @@
 jupyterlite_bind_ipynb_suffix = False
 strip_tagged_cells = True
 
+# Enable this to use the provided sample overrides JSON file.
+# jupyterlite_overrides = "sample_overrides.json"
+
+# Enable this to unsilence JupyterLite and aid debugging
+# within our own documentation.
+# jupyterlite_silence = False
+
 master_doc = "index"
 
 # General information about the project.

docs/sample_overrides.json

@@ -0,0 +1,20 @@
+{
+  "@jupyterlab/notebook-extension:panel": {
+    "toolbar": [
+      {
+        "name": "download",
+        "label": "Download",
+        "args": {},
+        "command": "docmanager:download",
+        "icon": "ui-components:download",
+        "rank": 50
+      }
+    ]
+  },
+  "@jupyterlab/apputils-extension:themes": {
+    "theme": "JupyterLab Christmas"
+  },
+  "@jupyter-notebook/application-extension:top": {
+    "visible": "no"
+  }
+}