[css-syntax] Fix a typo in tokenization algorithm of <column-token>.

Author: SimonSapin

css-syntax/Overview.bs

@@ -1099,7 +1099,7 @@ Consume a token</h4>
 
 			Otherwise,
 			if the <a>next input code point</a> is
-			U+0073 VERTICAL LINE (|),
+			U+007C VERTICAL LINE (|),
 			consume it
 			and return a <<column-token>>.
 
@@ -3638,4 +3638,5 @@ Acknowledgments</h2>
 	Marc O'Morain,
 	Raffaello Giulietti,
 	Simon Pieter,
+	Tyler Karaszewski,
 	and Zack Weinberg.