Change antora.yml for collector config

- Use name ROOT and version set to true, which is better
  when docs will be build from a central location for
  multiple branches(though we only have main for now).
- Relates #166

spring-security-kerberos-docs/antora.yml

@@ -1,7 +1,5 @@
-name: spring-security-kerberos
-version: '2.0.0'
-prerelease: '-SNAPSHOT'
-start_page: ROOT:index.adoc
+name: ROOT
+version: true
 nav:
 - modules/ROOT/nav.adoc
 ext:
@@ -10,4 +8,4 @@ ext:
       command: gradlew -q -PbuildSrc.skipTests=true "-Dorg.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError" :spring-security-kerberos-docs:generateAntoraYml
       local: true
     scan:
-      dir: ./build/generated-antora-resources
+      dir: ./build/generated-antora-resources