Edits and revisions to read-me's content.

[fredlf]

No description provided.

[yosifkit]

My only issue is that we may not want to line wrap the short description. It is not markdown and every character is important (hard limit of 200).

[yosifkit]

Ok, I tested a line wrap on the short description on the docker hub and it shows up on the hub page but not on search results.

[fredlf]

So should I keep wrapping them or no? I'm fine either way.

[yosifkit]

If the hub changes to ignore them, then it should be fine.

@tianon?

[tianon]

Yeah, I'm -1 on wrapping the -short.txt files. They aren't markdown, and thus line breaks are significant. Don't worry about updating all these PRs though - I'm going through and stealing the content from each of them by hand both to get a second set of eyes on the formatting (I've already caught one mistake we made before you ever got your hands on them) and to reflow them to 80 columns (since it looks like your editor is actually configured at ~90 columns), and also because several of them can't merge thanks to updates to the base README.md files. I'll have a PR with all of the updates (especially the reflowing) shortly-ish (definitely before EOD today).