diff --git a/20-interrupts-timer/README.md b/20-interrupts-timer/README.md
index 19b7f22..ec77e8a 100644
--- a/20-interrupts-timer/README.md
+++ b/20-interrupts-timer/README.md
@@ -1,3 +1,6 @@
+*Concepts you may want to Google beforehand: CPU timer, keyboard interrupts*
+
+**Goal: Implement our first IRQ handlers: the CPU timer and the keyboard**
 
 Everything is now ready to test our hardware interrupts.