docs: link to previous major releases

README.md

@@ -6,6 +6,10 @@ Zero-dependency library with various utilities for userscripts - register listen
 Contains builtin TypeScript declarations. Webpack compatible and supports ESM and CJS.  
 If you like using this library, please consider [supporting the development ❤️](https://github.com/sponsors/Sv443)
 
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+View documentation of previous major releases: [2.0.1](https://github.com/Sv443-Network/UserUtils/blob/v2.0.1/README.md), [1.2.0](https://github.com/Sv443-Network/UserUtils/blob/v1.2.0/README.md), [0.5.3](https://github.com/Sv443-Network/UserUtils/blob/v0.5.3/README.md)
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 </div>
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