Integrated: Add missing JFR mailinglist

[Yang Yi]

On Thu, 4 Feb 2021 07:05:13 GMT, Yang Yi <github.com+5010047+kelthuzadx at openjdk.org> wrote:

> Hi, I found that the code owner section of the latest version is missing jfr-related content, this PR will amend this content.

This pull request has now been integrated.

Changeset: 446338de
Author:    Yang Yi <qingfeng.yy at alibaba-inc.com>
Committer: Jesper Wilhelmsson <jwilhelm at openjdk.org>
URL:       https://git.openjdk.java.net/guide/commit/446338de
Stats:     3 lines in 1 file changed: 1 ins; 0 del; 2 mod

Add missing JFR mailinglist

Reviewed-by: jwilhelm

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PR: https://git.openjdk.java.net/guide/pull/44