diff --git a/infoZettelOrg/tools/inject.py b/infoZettelOrg/tools/inject.py
index 7d4c092..bbdf0f1 100755
--- a/infoZettelOrg/tools/inject.py
+++ b/infoZettelOrg/tools/inject.py
@@ -1,3 +1,6 @@
+"""
+replace variables in a template with specific variables
+"""
 #! /usr/bin/env python
 
 import logging