Design / speed tweaks

* Test updating CTA, using insiders version of mkdocs-material

* Dark mode, baby!

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* What will netlify do if I remove requirements.txt?

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* What will netlify do if I remove requirements.txt?

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Only build the insiders version

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Remove some broken links

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Fix dead link

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Remove twitter embed

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Fix dead links

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Mooar dead links

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

* Final dead link

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

manuscript/recipes/kubernetes/kanboard.md

@@ -4,9 +4,6 @@ Kanboard is a Kanban tool, developed by [Frédéric Guillot](https://github.com/
 
 ![Kanboard Screenshot](/images/kanboard.png)
 
-!!! tip "Sponsored Project"
-    Kanboard is one of my [sponsored projects](/sponsored-projects/) - a project I financially support on a regular basis because of its utility to me. I use it both in my DayJob(tm), and to manage my overflowing, overly-optimistic personal commitments! 😓
-
 Features include:
 
 * Visualize your work