Add docs configuration

To allow rendering the track's documents on the v3 website, we're introducing a docs/config.json file.

This commit adds the docs/config.json file.

Author: ErikSchierboom

docs/config.json

@@ -0,0 +1,32 @@
+{
+  "docs": [
+    {
+      "uuid": "5d4eed4f-0701-450a-a5c0-3ed858df5345",
+      "slug": "installation",
+      "path": "docs/INSTALLATION.md",
+      "title": "Installing Vim script locally",
+      "blurb": "Learn how to install Vim script locally to solve Exercism's exercises on your own machine"
+    },
+    {
+      "uuid": "fcb0506d-fd9d-4670-9fd3-9d5087f9f91a",
+      "slug": "learning",
+      "path": "docs/LEARNING.md",
+      "title": "How to learn Vim script",
+      "blurb": "An overview of how to get started from scratch with Vim script"
+    },
+    {
+      "uuid": "9e05374e-4176-4258-baa5-d105daae9af1",
+      "slug": "tests",
+      "path": "docs/TESTS.md",
+      "title": "Testing on the Vim script track",
+      "blurb": "Learn how to test your Vim script exercises on Exercism"
+    },
+    {
+      "uuid": "0621eeb1-38df-455f-93f9-7b473ec66446",
+      "slug": "resources",
+      "path": "docs/RESOURCES.md",
+      "title": "Useful Vim script resources",
+      "blurb": "A collection of useful resources to help you master Vim script"
+    }
+  ]
+}