add linkedin profile

_config.yml

@@ -13,6 +13,7 @@ baseurl: "" # the subpath of your site, e.g. /blog
 url: "https://thelinux.pro" # the base hostname & protocol for your site
 twitter_username: kameronkenny
 github_username:  kkenny
+linkedin_username: kameronkenny
 
 # Build settings
 markdown: kramdown

_includes/footer.html

@@ -6,6 +6,9 @@
     {% if site.twitter_username %}
       <a href="https://twitter.com/{{ site.twitter_username }}">Twitter</a><br />
     {% endif %}
+    {% if site.linkedin_username %}
+      <a href="https://linkedin.com/in/{{ site.linkedin_username }}">LinkedIn</a><br />
+    {% endif %}
   </div>
 </div>
    {% if site.google_analytics %}