- move gitbook files into their own folder at docs/gitbook

- rebuild homepage at `docs/homepage`

docs/gitbook/Basics/Options.md

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+## Dropdown Options {#options}
+
+`vue-select` accepts arrays of strings or objects to use as options through the `options` prop:
+
+```html
+<v-select :options="['foo','bar']"></v-select>
+```
+
+When provided an array of objects, `vue-select` will display a single value of the object. By default, `vue-select` will look for a key named `label` on the object to use as display text.
+
+```html
+<v-select :options="[{label: 'foo', value: 'Foo'}]"></v-select>
+```
+
+### Option Labels {#labels}
+
+When the `options` array contains objects, `vue-select` looks for the `label` key to display by default. You can set your own label to match your source data using the `label` prop.
+
+For example, consider an object with `countryCode` and `countryName` properties:
+
+```json
+{
+  countryCode: "CA",
+  countryName: "Canada"
+}
+```
+
+If you wanted to display `Canada` in the dropdown, you'd use the `countryName` key:
+
+```html
+<v-select label="countryName" :options="countries"></v-select>
+```
+
+### Null / Empty Options {#emptyOptions}
+
+`vue-select` requires the `option` property to be an `array`. If you are using Vue in development mode, you will get warnings attempting to pass anything other than an `array` to the `options` prop. If you need a `null`/`empty` value, use an empty array `[]`.