* Fix tvar string generation
* Add check for number of tvars in a single type signature
The number of tvars is limited by serialization (u8) to 255
* Added a comment in CHANGELOG
* Docs fixes
* Adding docs about the limitation on number of tvars
* Limit is 256, not 255
* Update CHANGELOG.md
Co-authored-by: Gaith Hallak <gaithhallak@gmail.com>
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Co-authored-by: Gaith Hallak <gaithhallak@gmail.com>