Update index.rst

[hanlaman]

Use ellipses consistently in menu items and commands #16025

Updated the JupyterLab documentation to mention Apple's Human Interface Guidelines for menus' style improvements.

References

Code changes

User-facing changes

Backwards-incompatible changes

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[krassowski]

Thank you for working on this!

I would suggest to move the added text from index to either:

• the main contributing guide page, or
• the design patterns page

Can you update the title of the PR to reflect the content (what does this PR change) rather than which files it edits?

Finally, I left a comment on the alert added. It does not render in the preview for me, I am not sure if we want to keep it but if we do let's use the native admonition.

[krassowski]

I am not sure if this should be an alert. It currently does not render at all:

If it should be a visible admonition, let's implement it using the native admonitions syntax, for example with .. note:

jupyterlab/docs/source/user/toc.rst

Lines 24 to 31 in 73a947d

	within your document.
	.. note::
	Markdown headings with a HTML tag that contains the class ``jp-toc-ignore`` will be ignored;
	e.g. ``# Title <a class="jp-toc-ignore"></a>``.
	Automatic section numbering will go through your Notebook and number your sections and

which render like this:

See https://jupyterlab.readthedocs.io/en/latest/user/toc.html