Release version 1.0.0

Signed-off-by: Sebastian Crane <seabass-labrax@gmx.com>

CHANGELOG.md

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+<!--- SPDX-License-Identifier: Apache-2.0 -->
+<!--- SPDX-FileCopyrightText: 2022 Sebastian Crane <seabass-labrax@gmx.com> -->
+
+# Changelog for `matchbot`
+
+`matchbot` uses [version 2.0.0 of the Semantic Versioning](https://semver.org/spec/v2.0.0.html) scheme.
+
+## [1.0.0] - 2022-03-03
+
+* Initial release
+
+[1.0.0]: https://git.libregaming.org/LibreGaming/matchbot/releases/tag/1.0.0