Replace section 3 intro image.

Author: stefmolin

slides/3-data_visualization.ipynb

@@ -34,8 +34,8 @@
     "The human brain excels at finding patterns in visual representations of the data; so in this section, we will learn how to visualize data using pandas along with the Matplotlib and Seaborn libraries for additional features. We will create a variety of visualizations that will help us better understand our data.\n",
     "\n",
     "<div style=\"text-align: center;\">\n",
-    "<img width=\"30%\" src=\"https://data.whicdn.com/images/186942641/original.jpg\" alt=\"Panda hug\" style=\"min-width: 300px\"/>\n",
-    "<div><small><em>Clockwise from top left: Matplotlib, Seaborn, and pandas. (<a href=\"https://weheartit.com/entry/186942641\">source</a>)</em></small></div>\n",
+    "<img width=\"30%\" src=\"https://images.unsplash.com/photo-1638898407927-79801f46960b?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80\" alt=\"Peek-a-boo! by Bobby Mc Leod on Unsplash\" style=\"min-width: 300px\"/>\n",
+    "<div><small><em><a href=\"https://unsplash.com/photos/XmnfnuqPNMY\">Source</a></em></small></div>\n",
     "</div>"
    ]
   },

slides/html/workshop.slides.html

@@ -27475,8 +27475,8 @@ <h2 id="Section-2-Complete-%F0%9F%8E%89">Section 2 Complete &#127881;<a class="a
 </div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput  celltag_id_section-3" data-mime-type="text/markdown">
 <h1 id="Section-3:-Data-Visualization">Section 3: Data Visualization<a class="anchor-link" href="#Section-3:-Data-Visualization">&#182;</a></h1><p>The human brain excels at finding patterns in visual representations of the data; so in this section, we will learn how to visualize data using pandas along with the Matplotlib and Seaborn libraries for additional features. We will create a variety of visualizations that will help us better understand our data.</p>
 <div style="text-align: center;">
-<img width="30%" src="https://data.whicdn.com/images/186942641/original.jpg" alt="Panda hug" style="min-width: 300px"/>
-<div><small><em>Clockwise from top left: Matplotlib, Seaborn, and pandas. (<a href="https://weheartit.com/entry/186942641">source</a>)</em></small></div>
+<img width="30%" src="https://images.unsplash.com/photo-1638898407927-79801f46960b?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80" alt="Peek-a-boo! by Bobby Mc Leod on Unsplash" style="min-width: 300px"/>
+<div><small><em><a href="https://unsplash.com/photos/XmnfnuqPNMY">Source</a></em></small></div>
 </div>
 
 </div>