update README

README.md

@@ -1,6 +1,21 @@
-# Slides_GIT_Mariano
-
+# Slides_GIT_Mariano
+
 ## Presentation made the 12/11/2019:
 
+Contents:
+
 - Version control with git
-- Markup languages
+- Markup languages
+
+Generated from an asciidoctor file using node.js and asciidoctor-revealjs
+
+To generate the html document from the document _**presentation.adoc**_
+
+```
+node install
+node asciidoctor-revealjs.js
+```
+
+Then open the file _**presentation.html**_
+
+A export of this file in .pdf format has been generated using [Decktape](https://github.com/astefanutti/decktape)