RFR: Fixed links and a few other minor changes [v2]

[Jesper Wilhelmsson]

> Changed openjdk.java.net to openjdk.org.

Jesper Wilhelmsson has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains seven commits:

 - Merge branch 'master' into stuff
 - Oops
 - Fix all links to openjdk.org
 - Updated Author description
 - Merge remote-tracking branch 'origin/master' into stuff
 - Updated todo list
 - Minor fixes

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Changes: https://git.openjdk.org/guide/pull/89/files
 Webrev: https://webrevs.openjdk.org/?repo=guide&pr=89&range=01
  Stats: 124 lines in 17 files changed: 4 ins; 4 del; 116 mod
  Patch: https://git.openjdk.org/guide/pull/89.diff
  Fetch: git fetch https://git.openjdk.org/guide pull/89/head:pull/89

PR: https://git.openjdk.org/guide/pull/89