README.md in jekyll-sleek-0.1.8 vs README.md in jekyll-sleek-0.1.9

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+ new

@@ -2,9 +2,11 @@
 
 [![Gem Version](https://badge.fury.io/rb/jekyll-sleek.svg)](https://badge.fury.io/rb/jekyll-sleek) [![Build Status](https://travis-ci.org/janczizikow/sleek.svg?branch=master)](https://travis-ci.org/janczizikow/sleek) [![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/janczizikow/sleek)
 
 A modern [Jekyll](https://jekyllrb.com/) theme focused on speed performance & SEO best practices.
 
+> ⚠️ This theme is no longer actively maintained.
+
 ![Sleek Jekyll Theme](./sleek.jpg)
 
 ## Features
 
 * Compatible with [Github Pages](https://pages.github.com/)