Update version_update.md to be a checklist guide

docs/version_update.md

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+# Version Update Checklist
+
+- [ ] Create Version Tag
+	- Format: `Dnx.y.z.r`
+		- x: Major (API change)
+		- y: Minor (backward compatible change)
+		- z: Patch (backward compatible bugfix)
+		- r: Revision (backward compatible quick fixes for typos)
+	- Double check that this tag is higher than the previous release tag
+	- Version tag must be appropriate to Semantic Versioning
+- [ ] Update changelogs:
+	- [CHANGELOG.md](CHANGELOG.md), which will update [../Dn-Help/hlp/changelog_shell.htm](changelog_shell.htm) upon build
+- [ ] Edit every file with version info:
+	- [Dn-FamiTracker.rc](../Dn-FamiTracker.rc)
+	- [version.h](../version.h)
+- [ ] **IMPORTANT**: update ConfigVersion.cpp
+- [ ] Update copyright years:
+	- [LICENSE.txt](../LICENSE.txt)
+	- all source files with copyright info:
+
+```
+FamiTracker - NES/Famicom sound tracker
+Copyright (C) 2005-2020 Jonathan Liss
+
+0CC-FamiTracker is (C) 2014-2018 HertzDevil
+
+Dn-FamiTracker is (C) 2020-2024 D.P.C.M.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details. To obtain a
+copy of the GNU Library General Public License, write to the Free
+Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Any permitted reproduction of these routines, in whole or in part,
+must bear this legend.
+```
+
+- [ ] Create and push Version Tag to the repo
+	- There is a GitHub Actions script to build a drafted release upon a tag push
+	- Tag must be on commit deemed appropriate for release
+- [ ] Edit and publish the draft release page in GitHub
+	- [ ] Triple check that the tag on the release matches the Version Tag
+	- [ ] Double check the build artifacts to be accurate and working
+- [ ] Notify everyone about the new version