diff --git a/USAGE b/USAGE.md
similarity index 97%
rename from USAGE
rename to USAGE.md
index 8b0d1c2..50b9878 100644
--- a/USAGE
+++ b/USAGE.md
@@ -6,6 +6,7 @@ Install notes
 Make sure to be in the *misp-book* repository directory for the npm magic.
 
 ```
+sudo apt install npm pkg-config libcairo2-dev
 npm install gitbook gitbook-plugin-autocover gitbook-plugin-github gitbook-plugin-toc gitbook-plugin-anchors
 sudo npm install gitbook-cli -g
 gitbook install