Fix formatting of C comment syntax example

Author: std-microblock

src/content/docs/c/comment.mdx

@@ -10,7 +10,7 @@ Comments serve as a sort of in-code documentation. When inserted into a program,
 ### Syntax
 
 * (1) `/*` _comment_ `*/`
-* (2) `//` <Revision since="C99"> _comment_ </Revision>  
+* (2) <Revision since="C99">`//` _comment_ </Revision>  
 
 1) Often known as "C-style" or "multi-line" comments.
 2) Often known as "C++-style" or "single-line" comments.