render page with fixed slides

docs/index.html

@@ -257,7 +257,7 @@ <h2 class="anchored" data-anchor-id="is-this-course-for-me">Is this course for m
 </section>
 <section id="instructor" class="level1">
 <h1>Instructor</h1>
-<p><img src="images/cedric.jpeg" class="img-fluid" style="float:right;padding: 0 0 0 10px;" alt="Headshot of Dr. Cédric Scherer" width="200"></p>
+<p><img src="images/cedric.png" class="img-fluid" style="float:right;padding: 0 0 0 10px;" alt="Headshot of Dr. Cédric Scherer" width="200"></p>
 <p><a href="http://cedricscherer.com/"><strong>Dr.&nbsp;Cédric Scherer</strong></a> (he/him) is a graduated computational ecologist with a passion for design. After his PhD, he combined his expertise in analyzing and visualizing large data sets in R with his passion to become an independent data visualization designer and specialist. Cédric has created visualizations across all disciplines, purposes, and styles and regularly teaches data visualization principles, the R programming language, and ggplot2. Due to regular participation in social data challenges such as <a href="https://github.com/rfordatascience/tidytuesday">#TidyTuesday</a>, he is now well known for complex and visually appealing figures, entirely made with ggplot2, that look as if they have been created with a vector design tool.</p>
 <div data-align="center">
 <p><a href="https://www.cedricscherer.com"><img border="0" alt="Blog" src="https://assets.dryicons.com/uploads/icon/svg/4926/home.svg" width="35" height="35"></a>  <a href="mailto:[email protected]"><img border="0" alt="Email" src="https://assets.dryicons.com/uploads/icon/svg/8009/02dc3a5c-6504-4347-85fb-3f510cfecc45.svg" width="35" height="35"></a>  <a href="https://twitter.com/CedScherer"><img border="0" alt="Twitter" src="https://assets.dryicons.com/uploads/icon/svg/8385/c23f7ffc-ca8d-4246-8978-ce9f6d5bcc99.svg" width="35" height="35"></a>  <a href="https://www.instagram.com/cedscherer/"><img border="0" alt="Instagram" src="https://assets.dryicons.com/uploads/icon/svg/8330/62263227-bb78-4b42-a9a9-e222e0cc7b97.svg" width="35" height="35"></a>  <a href="https://www.behance.net/cedscherer"><img border="0" alt="Behance" src="https://assets.dryicons.com/uploads/icon/svg/8264/04073ce3-5b98-4f32-88d3-82b2ef828066.svg" width="35" height="35"></a>  <a href="https://www.linkedin.com/in/cedricpscherer/"><img border="0" alt="LinkedIn" src="https://assets.dryicons.com/uploads/icon/svg/8337/a347cd89-1662-4421-be90-58e5e8004eae.svg" width="35" height="35"></a>   <a href="https://www.buymeacoffee.com/z3tt" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/guidelines/download-assets-sm-1.svg" alt="Buy Me A Coffee" style="height: 35px !important;width: 122px !important;"></a></p>
@@ -561,4 +561,4 @@ <h2 class="anchored" data-anchor-id="required-typefaces">Required Typefaces</h2>
 
 
 
-</body></html>
+</body></html>