Rename plugin to ExternalResources

Change-Id: Ieb7bee4929e4351316ad19d9bcd3752d466437da
diff --git a/templates/main.html b/templates/main.html
index 6c7028b..4ed9f6f 100644
--- a/templates/main.html
+++ b/templates/main.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <title>External Provider</title>
+    <title>External Resources</title>
     <link href="https://korap.ids-mannheim.de/instance/test/css/kalamar-plugin-latest.css" type="text/css" rel="stylesheet" />
     <script data-server="{{ .korapServer }}" src="https://korap.ids-mannheim.de/instance/test/js/korap-plugin-latest.js"></script>
   </head>