docs: reuse readme.adoc to include on jbang.dev

README.adoc

@@ -1,4 +1,4 @@
-= jbang-gradle-plugin
+= JBang Gradle Plugin
 :linkattrs:
 :project-owner:   jbangdev
 :project-name:    jbang-gradle-plugin

docs/antora.yml

@@ -0,0 +1,13 @@
+name: jbang-gradle-plugin
+title: JBang Gradle Plugin
+version: latest
+nav:
+  - modules/ROOT/nav.adoc
+ext: 
+  collector:
+  - run: jbang docs/readme2index.java
+  - scan: 
+      dir: build/content/pages
+      files: index.adoc
+      into: modules/ROOT/pages
+

docs/modules/ROOT/nav.adoc

@@ -0,0 +1 @@
+include::partial$nav.adoc[]

docs/modules/ROOT/partials/nav.adoc

@@ -0,0 +1 @@
+* xref:jbang-gradle-plugin:ROOT:index.adoc[]

docs/readme2index.java

@@ -0,0 +1,18 @@
+///usr/bin/env jbang "$0" "$@" ; exit $?
+
+import static java.nio.file.Files.copy;
+import static java.nio.file.Files.createDirectories;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.Paths;
+
+import static java.lang.System.*;
+
+public class readme2index {
+
+    public static void main(String... args) throws Exception  {
+        var target = Paths.get("build/content/pages/index.adoc");
+        createDirectories(target.getParent());
+        copy(Paths.get("README.adoc"),target,StandardCopyOption.REPLACE_EXISTING);
+        out.println("README.adoc copied to " + target);
+    }
+}