Typo.

    <a href="../mod/mod_rewrite.html">reference documentation</a>.

    It describes how one can use Apache's <module>mod_rewrite</module>

    to solve typical URL-based problems with which webmasters are

    commonony confronted. We give detailed descriptions on how to

    commonly confronted. We give detailed descriptions on how to

    solve each problem by configuring URL rewriting rulesets.</p>

  </summary>