feat: moved router and jquery into assets folder

router.js → assets/js/router.js

----
----
-
 function UrlExists(url, cb) {
     jQuery.ajax({
         url:      url,

index.md

@@ -4,8 +4,8 @@ title: Home
 order: 1
 ---
 
-<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
-<script type="text/javascript" src="router.js"></script>
+<script type="text/javascript" src="{{ "assets/js/jquery3.5.1.min.js" | relative_url }}"></script>
+<script type="text/javascript" src="{{ "assets/js/router.js" | relative_url }}"></script>
 
 
 # LCSB How-to Cards