docs: fix incorrect comment marker
diff --git a/docs/coding-style.md b/docs/coding-style.md
index d5188f0..b8b94d6 100644
--- a/docs/coding-style.md
+++ b/docs/coding-style.md
@@ -172,7 +172,7 @@ tags:
*
* @param s String to froznicate
* @return A newly allocated string or `NULL` in case an error occurred.
- * /
+ */
char *froznicate(const char *s);
```