add a note about tiptap 2 to the website

examples/Components/Banner/index.vue

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+<template>
+  <div class="banner">
+    We’re about to release <a href="https://blog.ueber.io/post/our-plan-for-tiptap-2/">tiptap 2</a>. Become a sponsor to get early access!
+    <a href="https://github.com/sponsors/ueberdosis" class="banner__action">
+      Sponsor 💖
+    </a>
+  </div>
+</template>
+
+<style lang="scss" src="./style.scss"></style>

examples/Components/Banner/style.scss

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+@import "~variables";
+
+.banner {
+  font-size: 0.9rem;
+  background-color: $color-black;
+  color: $color-white;
+  border-bottom: 1px solid $color-grey;
+  text-align: center;
+  padding: 1rem;
+
+  &__action {
+    background-color: $color-white;
+    transition: 0.1s ease-in-out all;
+    color: $color-black;
+    text-decoration: none;
+    padding: 0.4rem 0.7rem;
+    margin: 0.5rem;
+    border-radius: 5px;
+
+    &:hover {
+      background-color: $color-grey;
+    }
+  }
+}
+