RFR: 6855: Should add information about where to get builds to README [v2]

[Marcus Hirt]

The message from this sender included one or more files
which could not be scanned for virus detection; do not
open these files unless you are certain of the sender's intent.

----------------------------------------------------------------------
> Adding binary download info and cleaning up a bit

Marcus Hirt has updated the pull request incrementally with two additional commits since the last revision:

 - Fixing misunderstanding
 - More Red Hat related info

-------------

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/91/files
  - new: https://git.openjdk.java.net/jmc/pull/91/files/7b9a05bc..29c8578d

Webrevs:
 - full: https://webrevs.openjdk.java.net/jmc/91/webrev.01
 - incr: https://webrevs.openjdk.java.net/jmc/91/webrev.00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jmc/pull/91.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/91/head:pull/91

PR: https://git.openjdk.java.net/jmc/pull/91