ninja: restore doc/antora.yml

Author: driftx

.gitignore

@@ -10,7 +10,6 @@ logs/
 data/
 !test/data
 conf/hotspot_compiler
-doc/antora.yml
 doc/cql3/CQL.html
 doc/build/
 lib/

doc/antora.yml

@@ -0,0 +1,13 @@
+name: Cassandra
+version: '5.0'
+display_version: '5.0'
+asciidoc:
+  attributes:
+    cass_url: 'http://cassandra.apache.org/'
+    cass-50: 'Cassandra 5.0'
+    cassandra: 'Cassandra' 
+    product: 'Apache Cassandra'
+
+nav:
+- modules/ROOT/nav.adoc
+- modules/cassandra/nav.adoc