add documentation

boot.php

@@ -1961,11 +1961,21 @@ function current_load() {
 	return max($load_arr);
 }
 
-// much better way of dealing with c-style args
+/**
+ * @brief get c-style args
+ * 
+ * @return int
+ */
 function argc() {
 	return get_app()->argc;
 }
 
+/**
+ * @brief Returns the value of a argv key
+ * 
+ * @param int $x argv key
+ * @return string Value of the argv key
+ */
 function argv($x) {
 	if(array_key_exists($x,get_app()->argv))
 		return get_app()->argv[$x];