Rename param to allow implementations to use the normal node word

Author: robinst

commonmark-ext-footnotes/src/main/java/org/commonmark/ext/footnotes/internal/FootnoteHtmlNodeRenderer.java

@@ -80,10 +80,10 @@ public Set<Class<? extends Node>> getNodeTypes() {
     }
 
     @Override
-    public void beforeRoot(Node node) {
+    public void beforeRoot(Node rootNode) {
         // Collect all definitions first, so we can look them up when encountering a reference later.
         var visitor = new DefinitionVisitor();
-        node.accept(visitor);
+        rootNode.accept(visitor);
         definitionMap = visitor.definitions;
     }
 

commonmark/src/main/java/org/commonmark/renderer/NodeRenderer.java

@@ -21,9 +21,9 @@ public interface NodeRenderer {
      */
     void render(Node node);
 
-    default void beforeRoot(Node node) {
+    default void beforeRoot(Node rootNode) {
     }
 
-    default void afterRoot(Node node) {
+    default void afterRoot(Node rootNode) {
     }
 }