Fix broken docs

Author: allcreatures

docs/auto-diff-tutorial-1.md

@@ -1,7 +1,7 @@
 ---
-title: Automatic Differentiation Tutorial - 1
+title: "Automatic Differentiation Tutorial - 1"
 layout: page
-description: Autodiff tutorial 1
+description: "Autodiff tutorial 1"
 permalink: "/docs/auto-diff-tutorial-1"
 intro_image_absolute: true
 intro_image_hide_on_mobile: false

docs/auto-diff-tutorial-2.md

@@ -1,7 +1,7 @@
 ---
-title: Automatic Differentiation Tutorial - 2
+title: "Automatic Differentiation Tutorial - 2"
 layout: page
-description: Autodiff tutorial 2
+description: "Autodiff tutorial 2"
 permalink: "/docs/auto-diff-tutorial-2"
 intro_image_absolute: true
 intro_image_hide_on_mobile: false

docs/autodiff-tips-custom-diffs.md

@@ -1,7 +1,7 @@
 ---
-title: Autodiff Tips and Tricks: Custom Derivatives
+title: "Autodiff Tips and Tricks: Custom Derivatives"
 layout: page
-description: Autodiff Tips and Tricks: Custom Derivatives
+description: "Autodiff Tips and Tricks: Custom Derivatives"
 permalink: "/docs/autodiff-tips-custom-diffs"
 intro_image_absolute: true
 intro_image_hide_on_mobile: false