Add pre-commit
diff --git a/requirements.txt b/requirements.txt
index 3789929..2372ce2 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,5 +20,4 @@
 tooz # Apache-2.0
 sherlock>=0.4.1 # MIT
 kubernetes # Apache-2.0
-# email
-# smtplib
+pre-commit