Update site from docs source repo

Author: Exploding Labs Bot

superstack/migrations/index.html

@@ -643,7 +643,7 @@ <h3 id="writing-migrations">✍️ Writing Migrations</h3>
 </code></pre></div>
 <p>Each file should be:</p>
 <ul>
-<li>A <code>.sql</code> file</li>
+<li>An <code>.sql</code> file</li>
 <li>Numbered in order (e.g. <code>00-init.sql</code>, <code>01-extensions.sql</code>, <code>02-auth.sql</code>)</li>
 <li>Written in plain SQL</li>
 <li>But can include environment variables.</li>