Make the LEL layout look perty.

README.md

@@ -125,6 +125,8 @@ for(auto& [name, cell] : $gui.cells()) {
   $gui.set<Rectangle>(id, {});
   $gui.set<Label>(id, { guecs::to_wstring(name) });
 }
+
+$gui.init(); // must be called when done
 ```
 
 You'll notice I have `guecs::to_wstring(name)` which uses the forbidden unicode conversion `codecvt`