Add 5k->8k to changelog

Author: hugovk

index.html

@@ -127,6 +127,7 @@ <h2 id="changelog">Changelog</h2>
           <li>2019-12: Fetch data for 4,000 packages over 30 and 365 days (<a href="https://github.com/hugovk/top-pypi-packages/pull/7">#7</a>)</li>
           <li>2020-03: Fetch data monthly (<a href="https://github.com/hugovk/top-pypi-packages/pull/9">#9</a>)</li>
           <li>2021-07: Fetch data for 5,000 packages over only 30 days (<a href="https://github.com/hugovk/top-pypi-packages/pull/20">#20</a>)</li>
+          <li>2021-09: Fetch data for 8,000 packages (<a href="https://github.com/hugovk/top-pypi-packages/pull/30">#30</a>)</li>
           <li>2024-05: Provide data in CSV in addition to JSON (<a href="https://github.com/hugovk/top-pypi-packages/issues/31">#31</a>)</li>
           <li>2024-11: Fetch data for all installers, not only pip (<a href="https://github.com/hugovk/top-pypi-packages/issues/39">#39</a>)</li>
         </ul>