Publish the content of working_draft_wikipedia_page.md on Wikipedia

[sthagen]

Let us publish the content of https://github.com/oasis-tcs/sarif-spec/blob/master/Documents/working_draft_wikipedia_page.md to wikipedia.

[rillig]

Before publishing this marketing material to Wikipedia, it needs to be adjusted to fit within the scope of Wikipedia:

• Avoid marketing words ("could be substantially enhanced", "earlier efforts")
• No open questions (why did the committee suspend its activities for a year, why is that relevant for any reader of the Wikipedia article?)
• Avoid relative time references
• Only high-quality weblinks, instead of exhaustive lists of Microsoft-internal research projects that happen to use SARIF