Update app to V. 2.0.1; youtube video link updated

app.R

@@ -33,7 +33,7 @@ ui = shiny::fluidPage(
       ),
       shiny::div(
         class = "header-right",
-        shiny::p("Version 2.0.0 | January 2026"),
+        shiny::p("Version 2.0.1 | January 2026"),
         shiny::p(
           shiny::tags$strong("Authors: "),
           "Fadel M. Megahed, Ying-Ju (Tessa) Chen, Allison Jones-Farmer, Ibrahim Yousif, and Inez M. Zwetsloot"
@@ -212,7 +212,7 @@ ui = shiny::fluidPage(
         # Placeholder - replace VIDEO_ID_PLACEHOLDER with actual YouTube video ID
         shiny::tags$iframe(
           id = "tutorial-video",
-          src = "",
+          src = "https://www.youtube.com/embed/y6Uit4Drf9w",
           allow = "accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture",
           allowfullscreen = NA
         )
@@ -222,7 +222,7 @@ ui = shiny::fluidPage(
 
   # JavaScript for video modal
   shiny::tags$script(shiny::HTML("
-    var videoUrl = 'https://www.youtube.com/embed/VIDEO_ID_PLACEHOLDER';
+    var videoUrl = 'https://www.youtube.com/embed/y6Uit4Drf9w';
     var modal = document.getElementById('video-modal');
     var openBtn = document.getElementById('open-video-modal');
     var closeBtn = document.getElementById('close-video-modal');