DOC-4181: Update Antora configs (#175)

Author: eric-schneider

docs/docs-src/core/antora-cdc-cassandra.yml

@@ -1,7 +1,8 @@
 name: docs
-title: DataStax CDC for Apache Cassandra® Documentation
-version: "2.2.9"
-display_version: "2.2.9"
+title: DataStax CDC for Apache Cassandra
+version: '2.2.9'
+display_version: '2.2.9'
+start_page: index.adoc
 asciidoc:
   attributes:
     cdc_cass_first: 'DataStax CDC for Apache Cassandra®'

docs/playbooks/site-local-cdc-cassandra.yaml

@@ -1,6 +1,7 @@
 site:
-  title: DataStax CDC for Apache Cassandra documentation
-  url: /docs/cdc-apache-cassandra
+  title: DataStax CDC for Apache Cassandra
+  url: https://docs.datastax.com/en/cdc-for-cassandra
+  start_page: docs::index.adoc
 
 output:
   # The output.dir in the site-local playbook should take the form

docs/playbooks/site-publish-cdc-cassandra.yaml

@@ -1,6 +1,7 @@
 site:
-  title: DataStax CDC for Apache Cassandra documentation
+  title: DataStax CDC for Apache Cassandra
   url: https://docs.datastax.com/en/cdc-for-cassandra
+  start_page: docs::index.adoc
   # The google_analytics and segment_io site keys must be in the release playbook
   # of each docset. This ensures that the Google Tag Manager (GTM) and Segment
   # scripts get loaded into the docsets that get published to docs.datastax.com.