Fix fallback jquery filename

Created by: mourawaldson

This is my first PR here, not sure if this is the correct place to fix, neither if I should regenerate the docs after the fix to include on this PR, cause I noticed all examples are tracked.

Please let me know if anything.

docs/_includes/footer.html

@@ -12,7 +12,7 @@
 </footer>
 
 <script src="{{ site.cdn.jquery }}" integrity="{{ site.cdn.jquery_hash }}" crossorigin="anonymous"></script>
-<script>window.jQuery || document.write('<script src="{{ site.baseurl }}/assets/js/vendor/jquery.min.js"><\/script>')</script>
+<script>window.jQuery || document.write('<script src="{{ site.baseurl }}/assets/js/vendor/jquery-slim.min.js"><\/script>')</script>
 
 <script src="{{ site.baseurl }}/assets/js/vendor/tether.min.js"></script>