updated link to latest JITWatch video

README.md

@@ -3,7 +3,7 @@ JITWatch
 
 Log analyser and visualiser for the HotSpot JIT compiler.
 
-* Video introduction to JITWatch [video](https://skillsmatter.com/skillscasts/5243-chris-newland-hotspot-profiling-with-jit-watch)
+* Video introduction to JITWatch [video](https://www.youtube.com/watch?v=p7ipmAa9_9E)
 * Slides from my LJC lightning talk on JITWatch  [slides](http://www.chrisnewland.com/images/jitwatch/HotSpot_Profiling_Using_JITWatch.pdf)
 
 <h3>For instructions and screenshots see the wiki</h3>