Minor description fix

app.py

@@ -212,9 +212,9 @@ with gr.Blocks(theme=gr.themes.Soft(), delete_cache=(3600, 3600)) as app:
                 """
                 <h2>Background</h2>
                 <p>
-                    Replacing background is optional. 
-                    Background may be specified with a reference image or a text prompt.
-                    If omitted original avatar background will be preserved.
+                    Replacing the background is optional. 
+                    Resulting background may be specified with a reference image or a text prompt.
+                    If omitted the original avatar background will be preserved.
                     <br/><br/><br/>
                 </p>
                 """