Building Guide p2 - The buttons!? They need free hands!

Add to the documentation that buttons require empty hand to be used

Author: DrParadox7

src/main/resources/assets/openblocks/lang/en_US.lang

@@ -188,7 +188,7 @@ tile.openblocks.heal.name=Healer
 tile.openblocks.heal.description=The healing block is a creative-mode only block that gives off a slight healing effect over time.
 
 tile.openblocks.guide.name=Building Guide
-tile.openblocks.guide.description=The building guide is a redstone device that projects shapes using ghost blocks for easier building. The top face cycles through or rotate the shape. The side face has one set of buttons for each direction: +/– adjusts direction length while ➤ mirrors it to its opposing direction.\nProjection color can be changed by using dye on the building guide.
+tile.openblocks.guide.description=The building guide projects shapes using ghost blocks for easier building. Projection is activated via redstone signal and configured with an empty hand by using the buttons on each face. The top face cycles through or rotate the shape. The side face has one set of buttons for each direction (up, down, left & right): +/– adjusts direction length while ➤ mirrors it to its opposing direction.\nProjection color can be changed by using dye on the building guide.
 
 tile.openblocks.builder_guide.name=Enhanced Building Guide
 tile.openblocks.builder_guide.description=This enhanced version of building guide not only displays ghost blocks to make building easier, but also allows you to place actual blocks. Just click central block with any block stack!\nWhen in creative mode you can place an obsidian block above, then hit the building guide with any block you like to automatically create the shape.