Fix comment syntax formatting in C documentation

Author: std-microblock

src/content/docs/c/comment.mdx

@@ -10,8 +10,7 @@ Comments serve as a sort of in-code documentation. When inserted into a program,
 ### Syntax
 
 * (1) `/*` _comment_ `*/`
-
-<Revision since="C99">* (2) `//` _comment_ </Revision>  
+* <Revision since="C99">(2) `//` _comment_ </Revision>  
 
 1) Often known as "C-style" or "multi-line" comments.
 2) Often known as "C++-style" or "single-line" comments.