diff --git a/README b/README
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@@ -1 +1,15 @@
 Polycopiés numériques, projet UPD+UNPIdF
+
+
+Indexes
+-------
+
+Some queries need indexes to be performant, do not forget to install them.
+
+With SQLite::
+
+    python manage.py sqlindexes | sqlite3 polynum.db
+
+With PostgreSQL:
+
+    python manage.py sqlindexes | psql <db_name>