diff --git a/README.md b/README.md
index 348015a..e1be632 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ if ( empty($config) || empty($config['key']) || empty($config['input']) ) {
     exit(1);
 }
 
+// The memory limit has been set so that we can pass it big strings and test how much it can/will use.
 ini_set('memory_limit','1G');
 
 function limitStringSize($str, $amount = 20) {