diff --git a/scripts/get_coco.sh b/scripts/get_coco.sh
index 524f8dd..480c9bb 100644
--- a/scripts/get_coco.sh
+++ b/scripts/get_coco.sh
@@ -20,3 +20,5 @@ for f in $f1 $f2 $f3; do
   curl -L $url$f -o $f && unzip -q $f -d $d && rm $f & # download, unzip, remove in background
 done
 wait # finish background tasks
+
+
diff --git a/templates/about.html b/templates/about.html
index 0de6f6e..f4d8afb 100644
--- a/templates/about.html
+++ b/templates/about.html
@@ -5,4 +5,5 @@
     <h2>Instructions</h2>
     <p>Add instructions here</p>
 
-{% endblock %}
\ No newline at end of file
+{% endblock %}
+
diff --git a/templates/index.html b/templates/index.html
index 9ff6f4d..e335bd9 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -6,4 +6,5 @@
     <h1>linjie</h1>
     <img src="{{ url_for('video_feed') }}">
   </body>
-</html>
\ No newline at end of file
+</html>
+