RFR: 8281622: JFR: Improve documentation of jdk.jfr.Relational

[Erik Gahlin]

Hi,

Could I have a review of an added example snippet to the documentation of jdk.jfr.Relational.

Testing: tier1 + test/jdk/jdk/jfr

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.java.net/jdk/pull/7442/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7442&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281622
  Stats: 48 lines in 2 files changed: 47 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7442.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7442/head:pull/7442

PR: https://git.openjdk.java.net/jdk/pull/7442