git: openjdk/jfx: master: 8231601: Update CONTRIBUTING.md to clarify process for contributing features plus Skara changes

Sat Dec 18 00:06:48 UTC 2021

Changeset: 18063ade
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2021-12-18 00:05:37 +0000
URL:       https://git.openjdk.java.net/jfx/commit/18063ade22defdf55ec1b2083a5b296422ed05f4

8231601: Update CONTRIBUTING.md to clarify process for contributing features plus Skara changes

Reviewed-by: nlisker, jvos, mstrauss

! CONTRIBUTING.md