add ajax to docs

docs/components/snippets/AjaxExample.vue

@@ -0,0 +1,31 @@
+<template>
+	<pre><v-code lang="markup">&lt;v-select
+	:debounce=&quot;250&quot;
+	:on-search=&quot;getOptions&quot;
+	:options=&quot;options&quot;
+	placeholder=&quot;Search GitHub Repositories...&quot;
+	label=&quot;full_name&quot;
+&gt;
+&lt;/v-select&gt;</v-code></pre>
+				<pre><v-code lang="javascript">data() {
+	return {
+		options: null
+	}
+},
+methods: {
+  getOptions(search, loading) {
+    loading(true)
+    this.$http.get('https://api.github.com/search/repositories', {
+       q: search
+    }).then(resp => {
+       this.options = resp.data.items
+       loading(false)
+    })
+  }
+}
+</v-code></pre>
+</template>
+
+<script type="text/babel">
+	export default {}
+</script>