Update README.md

seanh · web-flow · commit 98a1809522d9 · 2019-10-02T19:50:14.000+01:00
diff --git a/README.md b/README.md
@@ -25,7 +25,7 @@ TODO:
 Usage
 -----
 
-Just add this to your `tox.ini` file:
+Just add this to the `[tox]` section of your `tox.ini` file:
 
 ```INI
 requires = tox-envfile
