Updating roberta embeddings in snomed example

[josejuanmartinez]

After moving roberta embeddings to public, the code examples should change

Description

Changes the reference of RobertaEmbeddings biomedical to public (in the code it was set the model was in "clinical/models")

Motivation and Context

We have moved the RobertaEmbeddings biomedical to public

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Code improvements with no or little impact
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING page.
• I have added tests to cover my changes.
• All new and existing tests passed.

[vkocaman]

@josejuanmartinez looks like 'es' is missing in Scala example