Add additional code examples

Author: kfahn22

content/videos/challenges/188-voice-chatbot/images/loading_bars.jpg

@@ -21,6 +21,30 @@
 
   ],
   "codeExamples": [
+    {
+      "title": "Graph Waveform of Recording",
+      "description": "The sketch graphs the waveform from mic input.",
+      "image": "waveform.jpg",
+      "urls": {
+        "p5": "https://editor.p5js.org/codingtrain/sketches/cck49wDub"
+      }
+    },
+    {
+      "title": "Real Time Waveform",
+      "description": "The sketch graphs the waveform from mic input in real time.",
+      "image": "realtime.jpg",
+      "urls": {
+        "p5": "https://editor.p5js.org/codingtrain/sketches/aaRIT-x6a"
+      }
+    },
+    {
+      "title": "Loading bars",
+      "description": "The sketch graphs loading bars for the models.",
+      "image": "loading_bars.jpg",
+      "urls": {
+        "p5": "https://editor.p5js.org/codingtrain/sketches/E9Ob3x8eJ"
+      }
+    },
     {
       "title": "Therapy Bot",
       "description": "Basic chatbot",