Align "Consume a function" description

Author: jonathantneal

css-syntax-3/Overview.bs

@@ -2640,8 +2640,8 @@ Consume a function</h4>
 
 	To <dfn>consume a function</dfn>:
 
-	Create a function with a name equal to the value of the <a>current input token</a>,
-	and with a value which is initially an empty list.
+	Create a function with its name equal to the value of the <a>current input token</a>
+	and with its value initially set to an empty list.
 
 	Repeatedly consume the <a>next input token</a> and process it as follows: