Added service for docs

Author: coderdiaz

src/services/api.js

@@ -0,0 +1,11 @@
+import axios from 'axios'
+const API_URL = `https://reqres.in/api`
+
+/**
+ * Function to get a users from API
+ * @param {Number} page
+ * @return AxiosPromise
+ */
+export const getUsers = (page = 1) => {
+  return axios.get(`${API_URL}/users?per_page=10&page=${page}`)
+}