diff --git a/doc/help.txt b/doc/help.txt
index 6056996..53957c0 100644
--- a/doc/help.txt
+++ b/doc/help.txt
@@ -2,5 +2,10 @@ With this command, you'll be able to manage easily the extraction of
 URLs from books scanned by KBR
 
 Here is the list of commands and what there are doing:
+
+* make help: display this help
 * make pdftotext: this command extract a text version of the PDF files
                   and copy these files to the data/text/ directory
+* make extract: running the script to extract URLs found in the text
+                files stored in the data/text directory
+* make init: if necessary, creates the directories needed