Update README.md

UltraEngine · web-flow · commit 08bd0d8637d6 · 2023-04-19T09:50:47.000+04:00
diff --git a/README.md b/README.md
@@ -174,6 +174,7 @@ Usage in C++ generally follows the same rules as STL containers like maps and ve
 
 - begin
 - clear
+- empty
 - end
 - operator[]
 - push_back
