add old page name redirections

ccvpn/urls.py

@@ -21,6 +21,9 @@ urlpatterns = [
     path('setlang', views.set_lang, name='set_lang'),
     path('chat', views.chat, name='chat'),
     path('page/faq', RedirectView.as_view(url='/kb/')),
+    path('page/install-gnulinux', RedirectView.as_view(url='/page/install-linux')),
+    path('page/install-openvpn', RedirectView.as_view(url='/page/install-other')),
+    path('page/support', RedirectView.as_view(url='/page/help')),
     path('page/<name>', views.page, name='page'),
     path('status', account_views.status),