Fix buildozer command for substituting deps (#596)

README.md

diff --git a/README.md b/README.md
index fe1dbfa..652aecb 100644
--- a/README.md
+++ b/README.md
@@ -189,7 +189,7 @@
 buildozer command:
 
 ```
-buildozer 'substitute deps @old_([^/]+)//:pkg @new_${1}//:pkg' //...
+buildozer 'substitute deps @old_([^/]+)//:pkg @new_${1}//:pkg' //...:*
 ```
 
 For `pip_install` the labels are instead of the form