[css-syntax] editorial tweak

Author: tabatkins

css-syntax/Overview.html

@@ -3371,7 +3371,7 @@ <h3 id=changes-from-css-2.1-core-grammar><span class=secno>5.5. </span>
       <p> <em>This section is non-normative.</em>
 
       <p class=note> Note that the point of this spec is to match reality;
-       changes from CSS2.1&apos;s Core Grammar are nearly always because the
+       changes from CSS2.1’s Core Grammar are nearly always because the
        Core Grammar specified something that doesn't match actual browser
        behavior, or left something unspecified. If some detail doesn't match
        browsers, please let me know as it's almost certainly unintentional.
@@ -3385,7 +3385,7 @@ <h3 id=changes-from-css-2.1-core-grammar><span class=secno>5.5. </span>
         was totally undefined. Specifically:
         <ul>
          <li> [] blocks, () blocks and functions can now contain {} blocks,
-          〈at-keyword〉s or semicolons
+          〈at-keyword〉s or 〈semicolon〉s
 
          <li> Selectors can now contain semicolons
 

css-syntax/Overview.src.html

@@ -2369,7 +2369,7 @@ <h3>
 
 	<p class='note'>
 		Note that the point of this spec is to match reality;
-		changes from CSS2.1&apos;s Core Grammar are nearly always because the Core Grammar specified something that doesn't match actual browser behavior,
+		changes from CSS2.1’s Core Grammar are nearly always because the Core Grammar specified something that doesn't match actual browser behavior,
 		or left something unspecified.
 		If some detail doesn't match browsers,
 		please let me know
@@ -2387,7 +2387,7 @@ <h3>
 
 			<ul>
 				<li>
-					[] blocks, () blocks and functions can now contain {} blocks, 〈at-keyword〉s or semicolons
+					[] blocks, () blocks and functions can now contain {} blocks, 〈at-keyword〉s or 〈semicolon〉s
 
 				<li>
 					Selectors can now contain semicolons