diff --git a/docs/_includes/header.html b/docs/_includes/header.html
index f24bf33..88a495e 100644
--- a/docs/_includes/header.html
+++ b/docs/_includes/header.html
@@ -26,8 +26,17 @@
               <a class="page-link" href="{{ my_page.url | relative_url }}">{{ my_page.title | escape }}</a>
               {%- endif -%}
             {%- endfor -%}
+              <a class="page-link" href="https://github.com/sponsor/rerdavies">
+                  Sponsor
+                  <span style="vertical-align: center">
+                      <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16"
+                           >
+                        <path fill-rule="evenodd" d="M4.25 2.5c-1.336 0-2.75 1.164-2.75 3 0 2.15 1.58 4.144 3.365 5.682A20.565 20.565 0 008 13.393a20.561 20.561 0 003.135-2.211C12.92 9.644 14.5 7.65 14.5 5.5c0-1.836-1.414-3-2.75-3-1.373 0-2.609.986-3.029 2.456a.75.75 0 01-1.442 0C6.859 3.486 5.623 2.5 4.25 2.5zM8 14.25l-.345.666-.002-.001-.006-.003-.018-.01a7.643 7.643 0 01-.31-.17 22.075 22.075 0 01-3.434-2.414C2.045 10.731 0 8.35 0 5.5 0 2.836 2.086 1 4.25 1 5.797 1 7.153 1.802 8 3.02 8.847 1.802 10.203 1 11.75 1 13.914 1 16 2.836 16 5.5c0 2.85-2.045 5.231-3.885 6.818a22.08 22.08 0 01-3.744 2.584l-.018.01-.006.003h-.002L8 14.25zm0 0l.345.666a.752.752 0 01-.69 0L8 14.25z"></path>
+                    </svg>
+                  </span>
+              </a>
           </div>
         </nav>
       {%- endif -%}
     </div>
-  </header>
\ No newline at end of file
+  </header>