Cleanup: properly name method (has side effect).

src/main/java/de/dennisguse/opentracks/HelpActivity.java

@@ -3,6 +3,7 @@ package de.dennisguse.opentracks;
 import android.os.Bundle;
 import android.view.View;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import de.dennisguse.opentracks.databinding.HelpBinding;
@@ -19,8 +20,9 @@ public class HelpActivity extends AbstractActivity {
         ViewUtils.makeClickableLinks(findViewById(android.R.id.content));
     }
 
+    @NonNull
     @Override
-    protected View getRootView() {
+    protected View createRootView() {
         helpBinding = HelpBinding.inflate(getLayoutInflater());
         return helpBinding.getRoot();
     }