fix two broken links

Author: bmuenzenmeyer

endnotes.md

@@ -24,8 +24,8 @@ description: Links and references for further reading and exploration.
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1714855194426">12. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855194426"></a><a href="https://www.youtube.com/watch?v=3_VHsrz0kfc">https://www.youtube.com/watch?v=3_VHsrz0kfc</a></span></p>
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1716869427477">13. <a href="#jkvZLtxq5fnsdSAa-endnote-1716869427477"></a><a href="https://medium.com/@jessitron/symmathecist-n-c728957ce71f">https://medium.com/@jessitron/symmathecist-n-c728957ce71f</a></span></p>
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1716176281240">14. <a href="#jkvZLtxq5fnsdSAa-endnote-1716176281240"></a><a href="https://xkcd.com/2347/">https://xkcd.com/2347/</a></span></p>
-<p><span id="jkvZLtxq5fnsdSAa-endnote-1714855602606">15. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855602606"></a><a href="https://github.com/facebook/jest/issues/13808">https://github.com/facebook/jest/issues/13808</a></span></p>
-<p><span id="jkvZLtxq5fnsdSAa-endnote-1714855716399">16. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855716399"></a><a href="https://www.secondcity.com/how-to-say-yes-and/">https://www.secondcity.com/how-to-say-yes-and/</a></span></p>
+<p><span id="jkvZLtxq5fnsdSAa-endnote-1714855602606">15. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855602606"></a><a href="https://github.com/jestjs/jest/issues/13808">https://github.com/jestjs/jest/issues/13808</a></span></p>
+<p><span id="jkvZLtxq5fnsdSAa-endnote-1714855716399">16. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855716399"></a><a href="https://pantheater.com/rules-of-improv.html">https://pantheater.com/rules-of-improv.html</a></span></p>
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1714855928352">17. <a href="#jkvZLtxq5fnsdSAa-endnote-1714855928352"></a><a href="https://github.com/facebook/create-react-app/issues/11756">https://github.com/facebook/create-react-app/issues/11756</a></span></p>
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1714879287471">18. <a href="#jkvZLtxq5fnsdSAa-endnote-1714879287471"></a><a href="https://www.redhat.com/en/blog/dont-lick-cookie">https://www.redhat.com/en/blog/dont-lick-cookie</a></span></p>
 <p><span id="jkvZLtxq5fnsdSAa-endnote-1714879376773">19. <a href="#jkvZLtxq5fnsdSAa-endnote-1714879376773"></a><a href="https://almanac.httparchive.org/en/2022/page-weight">https://almanac.httparchive.org/en/2022/page-weight</a></span></p>