lite: Update example

Author: datakurre

lite/contents/Example.ipynb

@@ -88,11 +88,6 @@
       "execution_count": null,
       "outputs": []
     },
-    {
-      "cell_type": "markdown",
-      "source": "Unfortunately, due to [a bug](https://github.com/jupyterlite/jupyterlite/issues/303) in Jupyter Lite ipywidgets integration, the button output does not fully work: output may replace button or appear in wrong location.\n\nAlso, the failing keyword below does not show its stderr as it should:",
-      "metadata": {}
-    },
     {
       "cell_type": "code",
       "source": "*** Keywords ***\n\nThis keyword should fail\n    [Arguments]  ${word}=Hello world\n    Don't display  ${word}",