diff --git a/Dynamic filtering: Benefits of blocking 3rd party iframe tags.md b/Dynamic-filtering:-Benefits-of-blocking-3rd-party-iframe-tags.md
similarity index 99%
rename from Dynamic filtering: Benefits of blocking 3rd party iframe tags.md
rename to Dynamic-filtering:-Benefits-of-blocking-3rd-party-iframe-tags.md
index d2e934b..23eaedd 100644
--- a/Dynamic filtering: Benefits of blocking 3rd party iframe tags.md	
+++ b/Dynamic-filtering:-Benefits-of-blocking-3rd-party-iframe-tags.md
@@ -1,3 +1,7 @@
+[sorry, the screenshots are obsolete]
+
+***
+
 <p align="center"><img src="https://raw.githubusercontent.com/gorhill/uBlock/master/doc/img/dynamic-filtering-7.png" /><br><sup>3rd-party &lt;iframe&gt; tags blocked by default for all sites.</sup></p>
 
 ### Malware protection