Add example

.examples/testapp.py

@@ -0,0 +1,35 @@
+import webbrowser
+
+from maplibre import Layer, LayerType, MapOptions
+from maplibre.controls import FullscreenControl
+from maplibre.ipywidget import MapWidget as Map
+from maplibre.sources import GeoJSONSource
+
+vancouver_blocks = GeoJSONSource(
+    data="https://raw.githubusercontent.com/visgl/deck.gl-data/master/examples/geojson/vancouver-blocks.json",
+)
+
+map_options = MapOptions(
+    center=(-123.1256, 49.24658),
+    zoom=12,
+    hash=True,
+    pitch=35,
+)
+
+m = Map(map_options)
+m.use_message_queue()
+m.add_control(FullscreenControl())
+m.add_layer(
+    Layer(
+        type=LayerType.LINE,
+        source=vancouver_blocks,
+        paint={"line-color": "white"},
+    )
+)
+
+temp_file = "/tmp/pymaplibregl.html"
+
+with open(temp_file, "w") as f:
+    f.write(m.to_html(style="height: 800px;"))
+
+webbrowser.open(temp_file)