diff --git a/Composer-plugin.md b/Composer-plugin.md
index c1aaadc..cd5f1a9 100644
--- a/Composer-plugin.md
+++ b/Composer-plugin.md
@@ -2,9 +2,9 @@ Allows you to run Composer within your build, to install dependencies prior to t
 
 ## Configuration Options:
 
-* **directory** - Optional - Directory within which you want Composer to run (defaults to build root.) 
-* **action** - Optional - Action you wish Composer to run (defaults to update.)
-* **prefer_dist** - Optional - true/false whether Composer should run with the `--prefer-dist` flag.
+* **directory** [optional] - Directory within which you want Composer to run (default: build root) 
+* **action** [optional - Action you wish Composer to run (default: 'install')
+* **prefer_dist** [optional - true/false whether Composer should run with the `--prefer-dist` flag (default: false)
 
 ### Example
 ```yml