Add info about Zenodo

.zenodo.json

@@ -0,0 +1,20 @@
+{
+    "description": "<p>This artifact is for archival purposes only. <strong>Please see the </strong><a href=\"https://w3id.org/stax/\"><strong>RDF-STaX website</strong></a><strong> for more information.</strong></p>", 
+    "license": "CC-BY-4.0", 
+    "upload_type": "software", 
+    "keywords": [
+        "RDF",
+        "RDF streaming", 
+        "Taxonomy", 
+        "Ontology",
+        "SKOS"
+    ], 
+    "creators": [
+        {
+            "orcid": "0000-0002-2543-9461", 
+            "affiliation": "Warsaw University of Technology", 
+            "name": "Piotr Sowi\u0144ski"
+        }
+    ], 
+    "access_right": "open"
+}

docs/ontology.md

@@ -45,6 +45,12 @@ Released versions of the ontology are available in the JSON-LD, N-Triples, RDF/X
 
     The process for making releases is described on the [Contributing](contributing.md#releases) page.
 
+### Archival in Zenodo
+
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.10072907.svg)](https://zenodo.org/doi/10.5281/zenodo.10072907)
+
+Each RDF-STaX release is archived in Zenodo under this DOI: [10.5281/zenodo.10072907](https://zenodo.org/doi/10.5281/zenodo.10072907).
+
 ## See also
 
 - **[How to use it?](use-it.md)**