Update side bar

Author: seratch

docs/_includes/sidebar-ja.md

@@ -20,7 +20,7 @@
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/app-home">Home タブ</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/slash-commands">スラッシュコマンド</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/events-api">イベント API</a></li>
-      <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/steps-from-apps">ワークフローステップ</a></li>
+      <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/steps-from-apps">ワークフローステップ（非推奨）</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/app-distribution">アプリの配布 (OAuth)</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/sign-in-with-slack">Slack でログインする</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/ja/supported-web-frameworks">対応 Web フレームワーク</a></li>

docs/_includes/sidebar.md

@@ -20,7 +20,7 @@
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/app-home">App Home</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/slash-commands">Slash Commands</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/events-api">Events API</a></li>
-      <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/steps-from-apps">Workflow Steps</a></li>
+      <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/steps-from-apps">Workflow Steps (Deprecated)</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/app-distribution">App Distribution (OAuth)</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/sign-in-with-slack">Sign in with Slack</a></li>
       <li class="toctree-l2"><a href="{{ site.url | append: site.baseurl }}/guides/supported-web-frameworks">Supported Web Frameworks</a></li>