Integrated: Fix typo in README.md

[Per Minborg]

On Tue, 27 Sep 2022 07:25:24 GMT, Per Minborg <duke at openjdk.org> wrote:

> This PR removes a redundant `=` character.

This pull request has now been integrated.

Changeset: 08e03c73
Author:    Per Minborg <pminborg at gmail.com>
Committer: Athijegannathan Sundararajan <sundar at openjdk.org>
URL:       https://git.openjdk.org/jextract/commit/08e03c738316e325f226ba4bdc393ab6af79bca7
Stats:     1 line in 1 file changed: 0 ins; 0 del; 1 mod

Fix typo in README.md

Reviewed-by: sundar

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PR: https://git.openjdk.org/jextract/pull/78