Use Bluesky instead of Twitter

Author: barna-isaac

_config.yml

@@ -34,7 +34,7 @@ about_stub: >
 
 about_footer: true
 
-twitter_username: IsaacPhysics
+bluesky_username: isaacphysics.org
 #github_username: yourgithub
 facebook_id: IsaacPhysicsUK
 

_includes/footer.html

@@ -2,8 +2,8 @@
     {% include suggestion.html %}
     {% if page.url == "/about" or paginator.total_pages == 1 or page.url == "/404" %}
         <div class="container" style="text-align: center; margin-bottom: 20px">
-            <a target="_blank" class="button" href="https://twitter.com/{{ site.twitter_username }}">
-                Follow us on Twitter
+            <a target="_blank" class="button" href="https://bsky.app/profile/{{ site.bluesky_username }}">
+                Follow us on Bluesky
             </a>
         </div>
     {% endif %}
@@ -15,8 +15,8 @@
             </p>
         </div>
         <div class="alignable pull-right">
-            <a target="_blank" href="https://twitter.com/{{ site.twitter_username }}" class="button">
-                @{{ site.twitter_username }}
+            <a target="_blank" href="https://bsky.app/profile/{{ site.bluesky_username }}" class="button">
+                @{{ site.bluesky_username }}
             </a>
             <a href="mailto:{{ site.email }}" class="button">
                 mail

_layouts/default.html

@@ -33,8 +33,8 @@
     <link rel="apple-touch-icon" href="/assets/favicon/apple-touch-icon-76x76.png"   sizes="76x76">
     <link rel="apple-touch-icon" href="/assets/favicon/apple-touch-icon-precomposed.png">
 
-    {% if site.twitter_username %}
-        <link rel="author" href="https://twitter.com/{{ site.twitter_username }}">
+    {% if site.bluesky_username %}
+        <link rel="author" href="https://bsky.app/profile/{{ site.bluesky_username }}">
     {% endif %}
     <!-- Facebook Open Graph -->
     <meta name="og:description" content="{{ desc }}">