RFR: Updates to the JBS section of the OpenJDK Dev Guide [v6]

[calnan]

> Added overview on triaging issues, the bug states and process.

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

  updated the Implementing a large change section

-------------

Changes:
  - all: https://git.openjdk.org/guide/pull/100/files
  - new: https://git.openjdk.org/guide/pull/100/files/3ab60291..ae8baaae

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=guide&pr=100&range=05
 - incr: https://webrevs.openjdk.org/?repo=guide&pr=100&range=04-05

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/guide/pull/100.diff
  Fetch: git fetch https://git.openjdk.org/guide.git pull/100/head:pull/100

PR: https://git.openjdk.org/guide/pull/100