Explore "featured content" on AsciiDoc start page

In issue #29 (closed) and PR #34 / 3c375001 we've replace the "featured content" (at that time mentioning the "Eclipse Foundation Events") with content hosted in the AsciiDoc WG Git repo describing the "purpose" of the AsciiDoc working group.

As pointed out by @chrisguindon, the Eclipse Marketing team maintains and updates the content delivered for the "featured content" widget on the site. @shanda-eclipse let us know that we can send content to her via email: news@eclipse.org

This is a follow-up issue to find out:

• what are the trade-offs of using the "featured story" mechanism delivering dynamic content vs. static content on the working group's start page?
• who is responsible/the driver for the content of the "featured story" - the working group or the Eclipse Marketing team?
• what are recommendations/best practices of the Eclipse Marketing team to have on a working group's start page?

Possible outcomes of this issue:

• stay with having the content in the git repository OR using the featured story mechanism with content maintained by the Eclipse Marketing team
• stay with the "purpose" content OR come up with different content that fits better to the start page