Update README.md

README.md

@@ -58,7 +58,7 @@ In a notes app, if you wish to delete the note from your database, after it is s
 
 > The fourth parameter is an optional parameter, for the second Color integer, if the user wants two colors in the background, the user can pass both **Parameter 3 and Parameter 4**.
 
-**Java Implementation**
+## Java Implementation
 All the optional parameters are null, and thus the simplest implementation is,
 
     SwipeToDeleteKt.addSwipeToDelete(recyclerView, null, null, null, null);