added documentation to hooks.yaml

hooks.yaml

diff --git a/hooks.yaml b/hooks.yaml
index fb9cc82..9e48555 100644
--- a/hooks.yaml
+++ b/hooks.yaml
@@ -1,6 +1,6 @@
 -   id: autopep8-wrapper
     name: autopep8 wrapper
-    description: Runs autopep8 over python source.
+    description: "Runs autopep8 over python source. (You'll want args: [-i] when using this hook, see .pre-commit-config.yaml for an example.)"
     entry: autopep8-wrapper
     language: python
     files: \.py$