'git mv' rst resources to md

This is mainly intended to keep the git history as neat as possible.
No actual conversion yet, so now both the rst and the paradox docs
are broken, which will be fixed in the next commits.

akka-docs/src/main/paradox/java/code/jdocs/persistence/PersistenceMultiDocTest.java

@@ -0,0 +1,31 @@
+/**
+ * Copyright (C) 2009-2017 Lightbend Inc. <http://www.lightbend.com>
+ */
+
+package jdocs.persistence;
+
+import akka.persistence.UntypedPersistentActor;
+
+public class PersistenceMultiDocTest {
+
+    //#default-plugins
+    abstract class ActorWithDefaultPlugins extends UntypedPersistentActor {
+        @Override
+        public String persistenceId() { return "123"; }
+    }
+    //#default-plugins
+
+    //#override-plugins
+    abstract class ActorWithOverridePlugins extends UntypedPersistentActor {
+        @Override
+        public String persistenceId() { return "123"; }
+        // Absolute path to the journal plugin configuration entry in the `reference.conf`
+        @Override
+        public String journalPluginId() { return "akka.persistence.chronicle.journal"; }
+        // Absolute path to the snapshot store plugin configuration entry in the `reference.conf`
+        @Override
+        public String snapshotPluginId() { return "akka.persistence.chronicle.snapshot-store"; }
+    }
+    //#override-plugins
+
+}