Merged data update

mkdocs/overrides/main.html

+{% extends "base.html" %}
+
+{% block content %}
+{% if page.nb_url %}
+    <a href="{{ page.nb_url }}" title="Download Notebook" class="md-content__button md-icon">
+        {% include ".icons/material/download.svg" %}
+    </a>
+{% endif %}
+
+{{ super() }}
+{% endblock content %}
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mkdocs/stylesheets/extra.css

+[data-md-color-scheme="uniwien"] {
+    --md-primary-fg-color:        #0063a6;
+    --md-primary-fg-color--light: #0574bf;
+    --md-primary-fg-color--dark: #004675;
+  }
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requirements.txt

+# Documentation static site generator & deployment tool
+mkdocs>=1.4.2
+# Theme
+mkdocs-material>=8.5.2
+mkdocs-material-extensions>=1.1
+# Plugins
+mkdocs-awesome-pages-plugin
+mkdocs-git-revision-date-localized-plugin
+mkdocs-jupyter
+mkdocs-same-dir
+mkdocs-exclude
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