add more info to footer

Author: burningtree

src/pages/index.astro

@@ -126,6 +126,6 @@ const data = {
 	</div>
 
 	<p class="mt-12 text-xs pt-6 border-t-1 border-t-black/25">
-		<a href="https://github.com/ethbrno/eb3/blob/main/src/pages/index.astro">Source code</a> | Generated: <i>{new Date().toISOString()}</i>
+		<span class="eb-ibasic">⟠×3</span> | <a href="https://github.com/ethbrno/eb3/blob/main/src/pages/index.astro">Source code</a> | Generated: <i>{new Date().toISOString()}</i> | Past editions: <a href="https://docs.ethbrno.cz/events/2021/">2021</a>, <a href="https://2022.ethbrno.cz">2022<a/>
 	</p>
 </Layout>