Update readme.md

Author: accgit

readme.md

@@ -1,10 +1,3 @@
 ## Dropdown menu
-
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/af9f8682404e4b9e8e20143c2a666cc6)](https://www.codacy.com/app/accgit/dropdown-menu?utm_source=github.com&utm_medium=referral&utm_content=css-ui/dropdown-menu&utm_campaign=badger)
-
 
 Simple dropdown menu, based on CSS UI.
-
-## Instruction
-
-Download and insert [css.ui.min.css](https://github.com/css-ui/cssui/tree/master/src/min) to directory css, then download [jquery.min.js](https://jquery.com/download/) and put to js directory.