RFR: Update ccc discussion to CSR [v2]

[Joe Darcy]

> Update ccc discussion to CSR

Joe Darcy has updated the pull request incrementally with two additional commits since the last revision:

 - Update changePlanning.md
 - Update changePlanning.md

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Changes:
  - all: https://git.openjdk.java.net/guide/pull/19/files
  - new: https://git.openjdk.java.net/guide/pull/19/files/cf1c10e5..957d4a09

Webrevs:
 - full: https://webrevs.openjdk.java.net/guide/19/webrev.01
 - incr: https://webrevs.openjdk.java.net/guide/19/webrev.00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/guide/pull/19.diff
  Fetch: git fetch https://git.openjdk.java.net/guide pull/19/head:pull/19

PR: https://git.openjdk.java.net/guide/pull/19