Add link to Github

Author: joladev

lib/jola_dev_web/controllers/blog_html/show.html.heex

@@ -29,7 +29,11 @@
       Written by <.link href="/about" class="underline">{@post.author}</.link>. Thoughts on this post? Find me on Bluesky at <.link
         href="https://bsky.app/profile/jola.dev"
         class="underline"
-      >@jola.dev</.link>.
+      >@jola.dev</.link>. If you like my writing, consider
+      <.link href="https://github.com/sponsors/joladev" class="underline text-accent">
+        supporting me on Github Sponsors
+      </.link>
+      and get a monthly newsletter with content from my blog.
     </p>
 
     <section :if={@related_posts != []} class="mt-16 pt-8 border-t border-border">