update tutorial link formatting

Author: bakkerbakker

_layouts/default.html

@@ -23,9 +23,10 @@ <h1><a href="{{ "/" | absolute_url }}">{{ site.title | default: site.github.repo
 
         <p>{{ site.description | default: site.github.project_tagline }}</p>
 
-        <p><b>PGC Dynamic STAC API</b></p>
-        <a href="https://github.com/PolarGeospatialCenter/pgc-code-tutorials/blob/main/dynamic_stac_api/web_files/stac_api_demo_workflow.html">Python Jupyter Notebook Workflow Tutorial </a>
-        <a href="https://github.com/PolarGeospatialCenter/pgc-code-tutorials/blob/main/dynamic_stac_api/web_files/desktop_gis_stac_access.html">ArcGIS Pro and QGIS Desktop Tutorials </a>
+        <p><b>PGC Dynamic STAC API</b><br />
+        <a href="https://github.com/PolarGeospatialCenter/pgc-code-tutorials/blob/main/dynamic_stac_api/web_files/stac_api_demo_workflow.html">Python Jupyter Notebook Workflow Tutorial </a><br />
+        <a href="https://github.com/PolarGeospatialCenter/pgc-code-tutorials/blob/main/dynamic_stac_api/web_files/desktop_gis_stac_access.html">ArcGIS Pro and QGIS Desktop Tutorials </a><br />
+        </p>
 
         {% if site.github.is_project_page %}
         <p class="view"><a href="{{ site.github.repository_url }}">View the Project on GitHub <small>{{ site.github.repository_nwo }}</small></a></p>