Issues on new sdformat.org usability

[scpeters-test]

Original report (archived issue) by John Hsu (Bitbucket: hsu, GitHub: hsu).

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couple of suggested issues for the new sdformat.org website:

• hard to search for tags on the new website
• <include> tags are not documented here.

[scpeters-test]

Original comment by John Hsu (Bitbucket: hsu, GitHub: hsu).

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tagging @drum @edrumwri who noticed these issues

[scpeters-test]

Original comment by Hugo Boyer (Bitbucket: hugomatic).

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Also:

• In thelinks section, all links point to an unavailable sdf.com

• Ironically, "Report Documentation Issues" is also a dead end.