docs: Add missing code block closure

Signed-off-by: Mauricio Vásquez <[email protected]>
nanshuaibo · Oct 7, 2020 · 5e55c22 · 5e55c22
1 parent 5fe3576
commit 5e55c22
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/docs/reference_guide.md b/docs/reference_guide.md
@@ -445,6 +445,7 @@ BPF_ITER(task)
  ... task->pid, task->tgid, task->comm, ...
  return 0;
 }
+```
 
 BPF iterators are introduced in 5.8 kernel for task, task_file, bpf_map, netlink_sock and ipv6_route . In 5.9, support is added to tcp/udp sockets and bpf map element (hashmap, arraymap and sk_local_storage_map) traversal.