Fix YouTube Short embed with width constraint wrapper

Author: Sannidhya

docs/providers/openai-chatgpt-plus-pro.mdx

@@ -16,15 +16,17 @@ keywords:
 
 This provider connects Roo Code to OpenAI's models through your ChatGPT Plus or Pro subscription. Authentication uses OAuth, so no API keys are required. Usage counts against your subscription instead of separate API billing.
 
-<div style={{position: 'relative', paddingBottom: '177.77%', height: 0, overflow: 'hidden'}}>
-  <iframe
-    src="https://www.youtube.com/embed/t0sIT8nGvrk"
-    title="OpenAI ChatGPT Plus/Pro Provider Setup Tutorial"
-    frameBorder="0"
-    allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
-    allowFullScreen
-    style={{position: 'absolute', top: 0, left: 0, width: '100%', height: '100%'}}
-  ></iframe>
+<div style={{width: '50%', margin: 'auto'}}>
+  <div style={{position: 'relative', paddingBottom: '177.77%', height: 0, overflow: 'hidden'}}>
+    <iframe
+      src="https://www.youtube.com/embed/t0sIT8nGvrk"
+      title="OpenAI ChatGPT Plus/Pro Provider Setup Tutorial"
+      frameBorder="0"
+      allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+      allowFullScreen
+      style={{position: 'absolute', top: 0, left: 0, width: '100%', height: '100%'}}
+    ></iframe>
+  </div>
 </div>
 
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