readme update and comments added to code

README.md

@@ -1,3 +1,3 @@
 # contactform
 
-A craft and bot resistant contact form
+A spam and bot resistant contact form. Remeber to update the URL and e-mail address this sends to if you use it.  

contactform.php

@@ -2,7 +2,8 @@
 // Form code for mail submissions
 // For usage with hugo site
 
-// Anti exploit code, not perfect but should throw a wrench into a bot's plan
+// Anti exploit code, not perfect but should throw a wrench into a bot's plan 
+// This code has been used on several sites before and does seem to do a decent job, not perfect but pretty good
 
 session_start();
 
@@ -48,7 +49,7 @@ class antibot {
         return $passfail;
     }
 
-    private function test_input($data) {
+    private function test_input($data) { // Cleans the input 
         $data = trim($data);
         $data = stripslashes($data);
         $data = htmlspecialchars($data);