Version not replaced in docs

[electrum]

These pages show DOCS_PLACEHOLDER_VERSION:

https://chicory.dev/docs/ https://chicory.dev/docs/usage/host-functions

[andreaTP]

Right, we need to do a "proper release" of the docs and figure out how to do it following this: https://docusaurus.io/docs/versioning

[andreaTP]

Fixed in #679 by removing references to versions in the docs, docusaurus clearly suggests that we freeze documentation at a specific version rarely. Probably we are going to do it once for 1.0.0, but not before.