fix type error

Author: jordandullier

src/stories/Header.vue

@@ -13,9 +13,9 @@
       </div>
       <div>
         <span class="welcome" v-if="user">Welcome, <b>{{ user.name }}</b>!</span>
-        <my-button size="small" @click="$emit('logout')" label="Log out" v-if="user" />
-        <my-button size="small" @click="$emit('login')" label="Log in" v-if="!user" />
-        <my-button primary size="small" @click="$emit('createAccount')" label="Sign up" v-if="!user" />
+        <my-button size="small" @click="$emit('logout')" :label="{text: 'Log out'}" v-if="user" />
+        <my-button size="small" @click="$emit('login')" :label="{text: 'Log in'}" v-if="!user" />
+        <my-button primary size="small" @click="$emit('createAccount')" :label="{text: 'Sign up'}" v-if="!user" />
       </div>
     </div>
   </header>