Update README.md

Author: safesploit

README.md

@@ -3,11 +3,16 @@
 
 Client-side tool to automatically generate a table of contents for your Markdown document. Simply paste it and a ToC will instantaneously be generated.
 
-Original author [here](//luciopaiva.com/markdown-toc).
+I forked this project as I wanted to make minor changes, preservation and to self-host the website.
+Credit to the original author [here](https://github.com/luciopaiva/markdown-toc).
+
+<p align="center">
+  <img width="721" alt="Preview Image" src="https://user-images.githubusercontent.com/10171446/169297164-b5eb103a-233f-4788-8b60-889902997b00.png">
+</p>
 
 # Modifications
 - External imports made local [Google Analytics](https://www.google-analytics.com/analytics.js), located /assets/js/analytics.js.
 
 - CSS moved from index.html into style.css with a reference to the styling file.
 
-- Added favicon to index.html
+- Added favicon to index.html