remove disclaimer from readme
upon release the disclaimer
"This respository is still under construction, the current files are not yet stable and should not be used for adoption. Planned release of v1.0.0 is April 29th 2024. This message will be removed after official release."
needs to be removed from https://codebase.helmholtz.cloud/em_glossary/em_glossary_owl/-/blob/main/README.md