Integrated: Update README.md

[Jesper Wilhelmsson]

On Tue, 6 Apr 2021 22:54:14 GMT, Jesper Wilhelmsson <jwilhelm at openjdk.org> wrote:

> Added todo item

This pull request has now been integrated.

Changeset: 86fabc81
Author:    Jesper Wilhelmsson <jwilhelm at openjdk.org>
URL:       https://git.openjdk.java.net/guide/commit/86fabc81
Stats:     1 line in 1 file changed: 1 ins; 0 del; 0 mod

Update README.md

Reviewed-by: iris

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PR: https://git.openjdk.java.net/guide/pull/55