Typo fix

Adds a missing `C<>` wrapper to inline code

Author: codesections

doc/Language/syntax.pod6

@@ -203,8 +203,8 @@ say "No more";
 
 Curly braces inside the comment can be nested, so in C<#`{ a { b } c }>, the
 comment goes until the very end of the string; this is why if the opening
-bracketing character also occurs in the body of the comment, e.g. #`[ This is a
-box [ of stuff ] ], it must have a paired closing character, as shown. You may
+bracketing character also occurs in the body of the comment, e.g. C<#`[ This is a
+box [ of stuff ] ]>, it must have a paired closing character, as shown. You may
 also use multiple curly braces, such as C<#`{{ double-curly-brace }}>, which
 might help disambiguate from nested delimiters. You can embed these comments in
 expressions, as long as you don't insert them in the middle of keywords or