Add RBTools 3.1.2 release notes.

Review Request #12659 — Created Sept. 30, 2022 and submitted Oct. 2, 2022, 10:31 p.m.

Description

Draft release notes for the next point release of RBTools.

Testing Done

Built HTML and checked output.

Commits

Summary
	Add RBTools 3.1.2 release notes.

Screenshots

Issues

flake8 passed.

JSHint passed.

docs/releasenotes/3.1.2.rst (Diff revision 1)
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Missing a trailing period.
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docs/releasenotes/3.1.2.rst (Diff revision 1)
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Only one blank line here.
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docs/releasenotes/3.1.2.rst (Diff revision 1)
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"Unicode".
Missing period.
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	Summary
-		Add RBTools 3.1.2 release notes.
+		Add RBTools 3.1.2 release notes.

	docs/releasenotes/3.1.2.rst
	docs/releasenotes/index.rst

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Pushed to release-3.x (0d6aa57)

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docs/releasenotes/3.1.2.rst (Diff revision 1)

docs/releasenotes/3.1.2.rst (Diff revision 1)

docs/releasenotes/3.1.2.rst (Diff revision 1)