diff --git a/Plugins,-Tools-and-Hardware.md b/Plugins,-Tools-and-Hardware.md
index 55d76bb..6e9a64f 100644
--- a/Plugins,-Tools-and-Hardware.md
+++ b/Plugins,-Tools-and-Hardware.md
@@ -8,7 +8,7 @@ A collection of plugins https://github.com/rajgoel/reveal.js-plugins/ including:
 - [anything](https://github.com/rajgoel/reveal.js-plugins/tree/master/anything): a plugin for adding plots, charts, animated SVGs, or anything else inside an HTML object using a JSON string and a javascript function ([Demo](http://courses.telematique.eu/reveal.js-plugins/anything-demo.html))
 - [audio-slideshow](https://github.com/rajgoel/reveal.js-plugins/tree/master/audio-slideshow): a plugin for easy audio playback and recording ([Demo](http://courses.telematique.eu/reveal.js-plugins/audio-slideshow-demo.html))
 - [chalkboard](https://github.com/rajgoel/reveal.js-plugins/tree/master/chalkboard):
- A plugin adding a chalkboard  ([Demo](http://courses.telematique.eu/reveal.js-plugins/chalkboard-demo.html))
+ A plugin adding a chalkboard and slide annotation ([Demo](http://courses.telematique.eu/reveal.js-plugins/chalkboard-demo.html))
 - [chart](https://github.com/rajgoel/reveal.js-plugins/tree/master/chart): a plugin for easy integration of charts ([Demo](http://courses.telematique.eu/reveal.js-plugins/chart-demo.html))
 - [mathsvg](https://github.com/rajgoel/reveal.js-plugins/tree/master/mathsvg):
  An extension of the math.js plugin allowing to render LaTeX expressions in SVG.