docserver - Also include the CSS for skottie-inline-sk.

Bug: skia:
Change-Id: Ib9bd03f7bc5143465742ce6b18abfa772e2fbe87
Reviewed-on: https://skia-review.googlesource.com/c/182140
Auto-Submit: Joe Gregorio <jcgregorio@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
diff --git a/docserverk/templates/index.html b/docserverk/templates/index.html
index f186d71..7d8f080 100644
--- a/docserverk/templates/index.html
+++ b/docserverk/templates/index.html
@@ -10,6 +10,7 @@
     <meta name="google-site-verification" content="pIHubYTE28EzwOWGWmHyNmxRNA6yclJyxSymw6uX8b8" />
     <script async src="/res/js/core.js"></script>
     <script async src="https://skottie.skia.org/static/inline-bundle.js"></script>
+    <link href="https://skottie.skia.org/static/inline-bundle.css" rel="stylesheet" />
     <link href="https://fiddle.skia.org/res/vul/elements.html" rel="import" />
     <link href="/res/css/docs.css" rel="stylesheet" />
   </head>