RFR: GitHub Actions [v5]

[Jesper Wilhelmsson]

> Encouraging developers to enable GHA on their personal forks.

Jesper Wilhelmsson has updated the pull request incrementally with one additional commit since the last revision:

  Link to jdk/test

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Changes:
  - all: https://git.openjdk.java.net/guide/pull/80/files
  - new: https://git.openjdk.java.net/guide/pull/80/files/69ae1fa4..64afe49b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=guide&pr=80&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=guide&pr=80&range=03-04

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/guide/pull/80.diff
  Fetch: git fetch https://git.openjdk.java.net/guide pull/80/head:pull/80

PR: https://git.openjdk.java.net/guide/pull/80