diff --git a/docs/rules/no-then.md b/docs/rules/no-then.md
index f234a28..955fa19 100644
--- a/docs/rules/no-then.md
+++ b/docs/rules/no-then.md
@@ -1,3 +1,27 @@
 # No then with promise (`jlc/no-then`)
 
 <!-- end auto-generated rule header -->
+
+That is bad:
+
+```js
+let promise = new Promise(function(resolve, reject) {
+  setTimeout(() => resolve(1), 1000);
+});
+
+promise.then(function(result) {
+
+});
+```
+
+That is good:
+
+```js
+let promise = new Promise(function(resolve, reject) {
+  setTimeout(() => resolve(1), 1000);
+});
+
+async function timeout(ms) {
+  await promise()
+}
+```