feat(newticket): add newticket page that points to GitHub

Author: timmywil

_includes/layouts/base.njk

@@ -124,7 +124,7 @@
         <h2 class="visually-hidden">Side navigation</h2>
         <nav id="jq-sidenav" class="flex-column white-box">
           <h5 class="sidenav-header">Bug Tracker</h5>
-          <a href="https://github.com/jquery/jquery/issues/new/choose">New Ticket</a>
+          <a href="/newticket">New Ticket</a>
           <a href="/report">View Tickets</a>
           <a href="/ticketgraph">Ticket Graph</a>
           <a href="/roadmap">Roadmap</a>

content/newticket.md

@@ -0,0 +1,11 @@
+---
+layout: layouts/base.njk
+---
+
+# New Ticket
+
+---
+
+jQuery issues have moved to [GitHub](https://github.com/jquery/jquery/issues). This site is now a static version of the old Trac bugs site. Tickets can no longer be created here.
+
+If you'd like to report a new issue, please [open an issue on GitHub](https://github.com/jquery/jquery/issues/new/choose).

content/ticketgraph.md

@@ -0,0 +1,13 @@
+---
+layout: layouts/base.njk
+---
+
+# Ticket Graph
+
+---
+
+This site is now a static version of the old Trac bugs site.
+
+The ticket graph no longer applies. There are no tickets with activity.
+
+If you're looking for the current list of jQuery issues, please visit [jQuery on GitHub](https://github.com/jquery/jquery/issues).