Fix extra * in KDoc guidelines.

PiperOrigin-RevId: 394127688
Change-Id: I0ac27f65488d82dc994e93240360c072a9e77da6
diff --git a/docs/kdoc_guidelines.md b/docs/kdoc_guidelines.md
index 72f91eb..714632c 100644
--- a/docs/kdoc_guidelines.md
+++ b/docs/kdoc_guidelines.md
@@ -193,7 +193,7 @@
 
 ```kotlin {.good}
 /**
- * * @param T my cool param
+ * @param T my cool param
  */
 ```