diff --git a/README.md b/README.md
index 5cbf2dd..89a4db2 100644
--- a/README.md
+++ b/README.md
@@ -7,16 +7,18 @@ The Sense HAT LED display is a floating window that shows a subset of the full p
 
 ![Sense HAT](readmeImages/pi-hat.jpeg)
 
-The full picture can be viewed using a web browser.
+The full picture can be viewed using a web browser. The web display also contains some controllers, like changing the pen color and so on.
 
 ![Web Application display](readmeImages/weapp.png)
 
+The application is written in golang. It's an event driven application. It uses webSockets to keep the web display in sync, and a web application to handle requests from the web client.
+
 I wrote a blog post series with a tutorial to guide how to build this application.
 
-For each post, there is a tag with the relevant code:
+For each post, there is a coresponding tag with the relevant code:
 * [Introduction post](https://www.fungoprogramming.tech/2021/03/20/pihatdraw%e2%80%8a-%e2%80%8adraw-with-raspberry-pi-sense-hat-golang-and-websockets/)
 * [Chapter 1: Start Drawing](https://www.fungoprogramming.tech/2021/03/20/pihatdraw-chapter-1-start-drawing/) - [v0.0.1](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.1)
 * [Chapter 2: Add Web-based display](https://www.fungoprogramming.tech/2021/03/23/pihatdraw-chapter-2-add-web-based-display-using-websockets/) - [v0.0.2](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.2)
 * [Chapter 3: Expand Canvas](https://www.fungoprogramming.tech/2021/03/25/pihatdraw-chapter-3-expand-canvas/) - [v0.0.3](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.3)
 * [Chapter 4: Adding Colors](https://www.fungoprogramming.tech/2021/04/06/pihatdraw-chapter-4-adding-colors/) - [v0.0.4](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.4)
-* [Chapter 5 – Download the Picture](https://www.fungoprogramming.tech/2021/04/12/pihatdraw-chapter-5-download-the-picture/) - [v0.0.5](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.5)
\ No newline at end of file
+* [Chapter 5: Download the Picture](https://www.fungoprogramming.tech/2021/04/12/pihatdraw-chapter-5-download-the-picture/) - [v0.0.5](https://github.com/nunnatsa/piHatDraw/releases/tag/v0.0.5)