Not available on open-vsx.org

[Mai-Lapyst]

Currently, the official nim-extension is only being published & distributed via the proprietary microsoft marketplace for vscode. Users of vscode forks, such as vscodium cannot install this extension as it uses https://open-vsx.org as it's extension source. Therefor it would be benefitically for users of vscodium and other vscode alternatives if the nim extension would also be published on open-vsx.