Fix manifest and rename to "External Provider"

Change-Id: I563788d85761ded87fced9e27002354a456b9e65
diff --git a/templates/main.html b/templates/main.html
index 3898767..bec6d1c 100644
--- a/templates/main.html
+++ b/templates/main.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <title>External Sale</title>
+    <title>External Provider</title>
     <script data-server="{{ .korapServer }}" src="client.js"></script>
     <script><!--
 "use strict";