✨ add webmention configurations info (#90)

* add link to github
* update site metadata

Author: benkutil

src/_data/siteData.json

@@ -1,5 +1,10 @@
 {
     "url": "https://benkutil.com",
     "title": "Ben Kutil – Product and Growth Leader",
-    "description": "I help organizations serve people better with technology."
+    "description": "I help organizations serve people better with technology.",
+    "domain": "benkutil.com",
+    "author": {
+        "name": "Ben Kutil",
+        "email": "ben.kutil@gmail.com"
+    }
 }

src/_includes/layouts/base.njk

@@ -101,6 +101,7 @@
         <a href="{{ "feeds/posts.xml" | absoluteUrl(siteData.url) }}">posts</a>, or
         <a href="{{ "feeds/notes.xml" | absoluteUrl(siteData.url) }}">notes</a>.
       </p>
+      <p><a href="https://github.com/benkutil" rel="me">Ben on Github</a>
     </footer>
   </body>
 </html>