Fix typo

Author: tesuji

templates/about.hbs

@@ -124,7 +124,7 @@ dependencies = [ "example-system-dependency" ]</pre></code>
 
   <h4>Contact</h4>
   <p>
-    Docs.rs is run and maintaned by <a href="https://www.rust-lang.org/governance/teams/dev-tools#rustdoc" target="_blank">Rustdoc team</a>.
+    Docs.rs is run and maintained by <a href="https://www.rust-lang.org/governance/teams/dev-tools#rustdoc" target="_blank">Rustdoc team</a>.
     You can find us in #docs-rs on <a href="https://discord.gg/rust-lang" target="_blank">Discord</a>.
   </p>