RFR: Addition of a causes link type [v4]

[Roger Calnan]

> There is a proposal for the addition of a causes/caused by link type.  Tied into that there is now a separate section which covers the main link types that we use

Roger Calnan has updated the pull request incrementally with one additional commit since the last revision:

  updates from feedback

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Changes:
  - all: https://git.openjdk.org/guide/pull/139/files
  - new: https://git.openjdk.org/guide/pull/139/files/f47c2bb4..162079eb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=guide&pr=139&range=03
 - incr: https://webrevs.openjdk.org/?repo=guide&pr=139&range=02-03

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/guide/pull/139.diff
  Fetch: git fetch https://git.openjdk.org/guide.git pull/139/head:pull/139

PR: https://git.openjdk.org/guide/pull/139