Fix vocabulary links to point to .html files instead of .qmd sources

Co-authored-by: rdhyee <153266+rdhyee@users.noreply.github.com>

Author: Copilot

models/index.qmd

@@ -37,10 +37,10 @@ The iSamples taxonomies are used to characterize three fundamental concepts pert
 
 Three taxonomies are currently defined :
 
-[Material Sample (specimen) Type Vocabulary](generated/vocabularies/material_sample_object_type.qmd)
+[Material Sample (specimen) Type Vocabulary](generated/vocabularies/material_sample_object_type.html)
 
-[Materials Vocabulary](generated/vocabularies/material_type.qmd)
+[Materials Vocabulary](generated/vocabularies/material_type.html)
 
-[Sampled Feature (context) Type vocabulary](generated/vocabularies/sampled_feature_type.qmd)
+[Sampled Feature (context) Type vocabulary](generated/vocabularies/sampled_feature_type.html)