Update documentation for <a> tag

[shreykejriwal]

If clicking on an element adds new content in the web page, we should still use <button> instead. As native <a> has properties like opening the link in new window or tab , this feature won't be helpful for loading the new content unless we change the url of the page.

Fixes # .

Changes proposed in this pull request:

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[robdodson]

If clicking on an element adds new content in the web page, we should still use instead. As native has properties like opening the link in new window or tab , this feature won't be helpful for loading the new content unless we change the url of the page.

I think I can specify a bit more. I'm specifically talking about when folks are using anchors to do routing in a SPA. So in this case it would update the URL (and load new content).

[robdodson]

Created a bug to track this #1020. @shreykejriwal would you be interested in updating your PR to keep the original language but clarify that you can use an anchor if you're doing routing in a SPA.

Maybe something like:

If clicking on the element will navigate the user to a new page then use <a>. This includes if you're navigating within a SPA and using client-side routing to update the URL.

[robdodson]

Fixed in #1020