Convert lecterns into Rivencraft book stands

README.md

@@ -18,6 +18,12 @@ there. The destination is stored on the item and survives inventory and world
 saves. Travel only succeeds if the target dimension is loaded and a solid,
 collision-free landing position can be found nearby.
 
+Right-click an empty vanilla lectern with a Rivencraft book to convert it into
+a Book Stand and place the book on it. Use a Linking Book on the stand by
+right-clicking with an empty hand. Sneak-right-click with an empty hand to take
+the book back and restore the vanilla lectern. Breaking a Book Stand drops both
+the stored book and a vanilla lectern.
+
 ## Requirements
 
 - A Java 21 JDK