Enhance iterative denoising explanation in index.html

Updated explanation for iterative denoising to include strided timestamps for improved computation.

Author: cjxthecoder

project-5/index.html

@@ -298,8 +298,10 @@ <h2>Part 1.4 – Iterative Denoising</h2>
 
   Instead of using one step, we can obtain better results by iterativly denoising from step <code>t</code> until step 0. However, this means running the diffusion model 1000 times in the worst case, which is slow and costly.
 
-  Fortunately, we can speed up the computation by iterating in steps. Due to
-
+  Fortunately, we can speed up the computation by first defining series of strided timestamps, starting at close to 1000 and ending at 0. For the examples below, we will use <code>strided_timestamps = list(range(990, -1, -30))</code>. Then, we can use the formula
+  
+  <
+  
   <div class="subsection">
     <h3>Code: iterative_denoise</h3>
     <pre><code># TODO