RFR: Added section on maintainer-pain [v6]

Wed Dec 16 08:26:13 UTC 2020

> Added section on maintainer-pain

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

 - Merge
 - Fixed typo
 - Moved description to JBS Label Dictionary
 - Explicit examples and new header
 - Refer to ProblemList section
 - Added section on maintainer-pain

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Changes: https://git.openjdk.java.net/guide/pull/37/files
 Webrev: https://webrevs.openjdk.java.net/?repo=guide&pr=37&range=05
  Stats: 15 lines in 1 file changed: 14 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/guide/pull/37.diff
  Fetch: git fetch https://git.openjdk.java.net/guide pull/37/head:pull/37

PR: https://git.openjdk.java.net/guide/pull/37