Add newline

c410-f3r · c410-f3r · commit 5ad4901bc99e · 2019-07-14T22:28:42.000-03:00
diff --git a/src/doc/unstable-book/src/language-features/param-attrs.md b/src/doc/unstable-book/src/language-features/param-attrs.md
@@ -24,4 +24,4 @@ fn len(
 {
   slice.len()
 }
-```
+```
