diff --git a/README.md b/README.md
index fd549eb..fc3afee 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,10 @@ extract URLs from PDF files. This project implement a method to do it.
 
 ## The TL;DR version
 
-Run `make extract` after copying files PDF files in the *./data*
-directory.
+1. Copy ocerized PDF files in a *./data* directory inside this
+   repository;
+2. Run the `make extract` command;
+3. Open the file created in the *./output* directory.
 
 ## The complete version