📝 Add "conditionally display button" video in docs

apps/docs/docs/editor/blocks/inputs/buttons.mdx

@@ -3,6 +3,7 @@ sidebar_position: 7
 ---
 
 import { FlowToBot } from '../../../../src/js/FlowToBot'
+import { YoutubeEmbed } from '../../../../src/js/YoutubeEmbed.jsx'
 
 # Buttons
 
@@ -93,3 +94,7 @@ If you'd like to have different replies based on the multiple choices the user s
   style={{ maxWidth: '900px' }}
   alt="Condition multiple button flow"
 />
+
+### Conditionally display a certain button
+
+<YoutubeEmbed videoId="c7LhC5BRSIA" />