add explaination for the method name

index.html

@@ -208,6 +208,10 @@ <h2 class="title is-3">Abstract</h2>
           <div class="column is-full-width has-text-justified">
             <h2 class="title is-3 has-text-centered">Diffusion Forcing</h2>
             <div class="content has-text-justified">
+              <p>
+                The name "<strong>Diffusion Forcing</strong>" comes from
+                "teacher forcing" and "diffusion models".
+              </p>
               <p>
                 Diffusion Forcing enjoys key strengths of both next-token
                 autoregressive models and full-sequence diffusion models. By