Add 'Vocabularies'

Vocabularies.md

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+# Vocabularies
+
+Some vocabularies to keep in mind
+
+https://schema.org
+
+```
+
+```
+
+Use this to import the Schema.org 3 vocabulary:
+
+* Label: Schema.org 3
+* Namespace URI: https://schema.org/
+* Namespace prefix: schema
+* Vocabulary URL: https://schema.org/version/latest/schemaorg-current-https.ttl
+* File format: Turtle (.ttl)