Updated link to JamesM's tutorial. Close cfenollosa#11

Author: cfenollosa

18-interrupts/README.md

@@ -3,7 +3,7 @@
 **Goal: Set up the Interrupt Descriptor Table to handle CPU interrupts**
 
 This lesson and the following ones have been heavily inspired
-by [JamesM's tutorial](http://www.jamesmolloy.co.uk/tutorial_html/index.html)
+by [JamesM's tutorial](https://web.archive.org/web/20160412174753/http://www.jamesmolloy.co.uk/tutorial_html/index.html)
 
 Data types
 ----------

README.md

@@ -18,7 +18,7 @@ code samples for anybody to follow. Honestly, this tutorial is basically the fir
 split into smaller pieces and without the theory.
 
 Updated: more sources: [the little book about OS development](https://littleosbook.github.io),
-[JamesM's kernel development tutorials](http://www.jamesmolloy.co.uk/tutorial_html/index.html)
+[JamesM's kernel development tutorials](https://web.archive.org/web/20160412174753/http://www.jamesmolloy.co.uk/tutorial_html/index.html)
 
 
 Features