update readme

Author: ptruser

README.md

@@ -18,6 +18,7 @@ But if you create an issue or send a pull request, the reason will be added to t
 
 ## Example (ru-tube)
 
-On the screenshot show full list of videos from `Trending`. (‏‎14:19 27.05.2020 - Moscow time)
-
-![ru](./www/ru-tube-example.png)
+<details>
+  <summary><b>On the screenshot show full list of videos from `Trending`. (‏‎14:19 27.05.2020 - Moscow time)</b></summary>
+![ru](./www/ru-tube-example.png)
+</details>