✨ (openai) Add create speech OpenAI action

Closes #1025

apps/docs/docs/editor/blocks/integrations/openai.mdx

@@ -1,7 +1,7 @@
-import { YoutubeEmbed } from '../../../../src/js/YoutubeEmbed.jsx'
-
 # OpenAI
 
+## Create chat completion
+
 With the OpenAI block, you can create a chat completion based on your user queries and display the answer back to your typebot.
 
 <img
@@ -25,6 +25,33 @@ Then you can give the OpenAI block access to this sequence of messages:
   alt="OpenAI messages sequence"
 />
 
+## Create speech
+
+This action allows you to transform a text input into an audio URL that you can reuse in your bot.
+
+<div
+  style={{
+    position: 'relative',
+    paddingBottom: '64.5933014354067%',
+    height: 0,
+  }}
+>
+  <iframe
+    src="https://www.loom.com/embed/ccca6cbf16ed4d01b513836775db06a3?sid=22a54baa-000b-435a-b770-bfaf32bfe453"
+    frameBorder={0}
+    webkitallowfullscreen
+    mozallowfullscreen
+    allowFullScreen
+    style={{
+      position: 'absolute',
+      top: 0,
+      left: 0,
+      width: '100%',
+      height: '100%',
+    }}
+  />
+</div>
+
 ## Using Multiple Open AI Blocks: Tips and Tricks
 
 In this video, I discuss some important things to keep in mind when using multiple Open AI blocks consecutively. I provide an example where we ask the user for a topic, generate a summary, and display a list of authors.