fix: added toast to chat.openai.com, added missing background image

index.html

@@ -371,7 +371,7 @@ <h1 class="r-fit-text">Prompt my Docs</h1>
 			</section>
 
 			<section data-background-image="assets/chatgpt_1.jpg" aria-label="ChatGPT">
-				<!-- <h3 class="mark2">ChatGPT</h3> -->
+				<div class="toast"><a href="https://chat.openai.com">chat.openai.com</a></div>
 				<aside class="notes">
 					<ul>
 						<li>Who has used ChatGPT at least once, please raise your hand!</li>
@@ -696,7 +696,7 @@ <h3 class="mark2">ANN <br />= Approximate Nearest Neighbor</h3>
 			</section>
 
 
-			<section data-background-image="assets/">
+			<section data-background-image="assets/chalkboard_4.jpg">
 				<div class="code">
 					<pre><code class="language-javascript" data-trim data-noescape data-line-numbers="1-2|3-6|8-9|11-16|13|14|18-19|21-29">
 						import { HNSWLib } from "langchain/vectorstores/hnswlib";