Add release-2.2.1-alpha release

Author: azat

index.html

@@ -243,6 +243,13 @@ <h4>Download&ndash;Alpha releases</h4>
    us know!
 
 <ul class="tight">
+   <li>
+     <a href="https://github.com/libevent/libevent/releases/download/release-2.2.1-alpha/libevent-2.2.1-alpha-dev.tar.gz">libevent-2.2.1-alpha-dev.tar.gz</a>
+    [<a href="https://github.com/libevent/libevent/releases/download/release-2.2.1-alpha/libevent-2.2.1-alpha-dev.tar.gz.asc">GPG Sig</a>]
+    <a href="https://github.com/libevent/libevent/blob/release-2.2.1-alpha/ChangeLog">ChangeLog</a><br>
+    Released 2023-05-21
+   </li>
+
    <li>
      <a href="https://github.com/libevent/libevent/releases/download/release-2.1.9-beta/libevent-2.1.9-beta.tar.gz">libevent-2.1.9-beta.tar.gz</a>
     [<a href="https://github.com/libevent/libevent/releases/download/release-2.1.9-beta/libevent-2.1.9-beta.tar.gz.asc">GPG Sig</a>]