Test vector module page;

api/lovr/vector/init.lua

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+return {
+  tag = 'vectors',
+  summary = '3D vector type.',
+  description = [[
+    TODO
+  ]]
+}

api/lovr/vector/pack.lua

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+return {
+  summary = 'Pack numbers into a vector.',
+  description = [[
+    Packs numbers into a vector.
+  ]],
+  arguments = {
+    x = {
+      type = 'number',
+      default = '0',
+      description = 'The x component of the vector.'
+    },
+    y = {
+      type = 'number',
+      default = 'x',
+      description = 'The y component of the vector.'
+    },
+    z = {
+      type = 'number',
+      default = 'z',
+      description = 'The z component of the vector.'
+    }
+  },
+  returns = {
+    v = {
+      type = 'vector',
+      description = 'The new vector.'
+    }
+  },
+  variants = {
+    {
+      arguments = { 'x', 'y', 'z' },
+      returns = { 'v' }
+    }
+  },
+  notes = [[
+    As a shortcut, the `vector` library can be called like a function, which calls this function:
+
+        vector(x, y, z) -- same as vector.pack(x, y, z)
+  ]],
+  example = [[
+    local a = vector.pack(1, 2, 3)
+    local b = vector.pack(5)
+    print(a + b) --> 6, 7, 8
+
+    -- put the 3 numbers from lovr.headset.getPosition into a vector!
+    local position = vector(lovr.headset.getPosition())
+  ]]
+}