website setup?

docs/building.md

+---
 layout: page
 title: "Building Scotty3D"
-permalink: /build
+permalink: /build/
+---
 
 ![Ubuntu Build Status](https://github.com/CMU-Graphics/Scotty3D-dev/workflows/Ubuntu/badge.svg) ![MacOS Build Status](https://github.com/CMU-Graphics/Scotty3D-dev/workflows/MacOS/badge.svg) ![Windows Build Status](https://github.com/CMU-Graphics/Scotty3D-dev/workflows/Windows/badge.svg)
 

docs/guide/guide.md

+---
 layout: page
 title: "User Guide"
-permalink: /guide
+permalink: /guide/
+---
 
 ## Modes and Actions
 

docs/guide/layout.md

+---
 layout: page
 title: "Layout"
-permalink: /guide/layout
+permalink: /guide/layout/
+---
 
 This is the main scene editing mode in Scotty3D, and does not contain tasks for the student to implement. 
 This mode allows you to load full scenes from disk, create or load new objects, export your scene (COLLADA format), and edit transformations that place each object into your scene.
@@ -47,4 +49,4 @@ Finally, you may remove the object from the scene by pressing `Delete` or hittin
 
 ## Demo
 
-![layout](layout.mp4)
+<video src="layout.mp4" preload autoplay muted loop style="max-width: 100%; margin: 0 auto;"></video>

docs/index.md

+---
 layout: page
 title: Scotty3D
 permalink: /
+---
 
 Welcome to Scotty3D! This 3D graphics software implements interactive mesh
 editing, realistic path tracing, and dynamic animation. Implementing the