add ontology entry

src/pages/dictionary/ontology.md

@@ -0,0 +1,21 @@
+---
+layout: ../../layouts/DictionaryPageLayout.astro
+title: 'Ontologies'
+pubDate: 2024-09-16
+description: 'A collection of concepts and their relationships for a specific domain.'
+author: 'Heinrich Lukas Weil'
+image:
+    url: 'https://docs.astro.build/assets/rose.webp'
+    alt: 'The Astro logo on a dark background with a pink glow.'
+tags: ["specification", "services", "community"]
+keywords: ["Ontology", "Controlled Vocabulary", "Ontology Term"]
+url: "ontology"
+---
+
+
+## Controlled Vocabulary vs Ontology
+
+## Representation
+
+
+Find out more about Ontologies on [ontotext.com](https://www.ontotext.com/knowledgehub/fundamentals/what-are-ontologies/).