fixes rendering issue in the algorithm for translating SELECT expressions (Section 18.2.4.4)

Author: hartig

spec/index.html

@@ -8967,8 +8967,8 @@ <h5>SELECT Expressions</h5>
 If "SELECT *"
     PV := VS
 
-If  "SELECT <code>selItem ...</code>:"  
-    For each selItem:
+If  "SELECT selItem ..."
+    For each selItem
         If selItem is a variable
             PV := PV ∪ { variable }
         End