docs: Default to light mode, add fancy logos and update starting page (…

…#60)

* docs: default to light mode

* docs: add logo, update index.md

docs/_config.yml

@@ -1,7 +1,7 @@
 title: SALDi Data Cube - Tools & Tutorials
 author: Marco Wolsza
-copyright: "2023"
-logo: ""
+copyright: "2023-2024"
+logo: _assets/africa_map_iso.png
 
 execute:
   execute_notebooks: 'off'
@@ -21,3 +21,9 @@ repository:
 html:
   use_issues_button: true
   use_repository_button: true
+
+sphinx:
+  recursive_update: true
+  config:
+    html_context:
+      default_mode: light

docs/index.md

@@ -5,19 +5,28 @@ is hosted on the Draco HPC cluster at the University of Jena and contains variou
 Observation data sets for the six study areas of the [SALDi project](https://www.saldi.uni-jena.de/en).
 
 The following pages provide information on how to install and use the `sdc-tools` 
-package, as well as an overview of the datasets that are currently available in the SDC 
-and how to access them.
-
-Please note the following:
+package, as well as several introductory tutorials tailored to our students of the M.Sc. 
+Geoinformatics program at the University of Jena. 
 
+Please note:
 - Access to the SDC is restricted to employees and students affiliated with the 
-Department for Earth Observation of the University of Jena, however, some tools might 
-still be useful for others who are working with similar data sets.
-- The tools and documentation are constantly being improved and extended. If you have 
-any questions or suggestions, please feel free to open an [issue](https://github.com/Jena-Earth-Observation-School/sdc-tools/issues) 
-or a [pull request](https://github.com/Jena-Earth-Observation-School/sdc-tools/pulls), 
+Department for Earth Observation of the University of Jena, however, some tools and 
+tutorials might still be useful for others who are working with similar data sets.
+- If you have any questions or suggestions, please feel free to open an [issue](https://github.com/Jena-Earth-Observation-School/sdc-tools/issues),
 post in the [discussions](https://github.com/Jena-Earth-Observation-School/sdc-tools/discussions) 
 or reach out directly to me via the email provided [here](https://github.com/maawoo).
 
+```{image} _assets/saldi_iso.png
+:alt: SALDi Data Cube Illustration
+:align: center
+```
+
+_The SDC illustrations have been created by P. Kluter (2020) of the Remote Sensing 
+department at the University of Würzburg for the [project page](https://eo2cube.org/projects/saldi) 
+of the first SALDi Data Cube implementation. Thanks for letting us use them here as 
+well!_
+
+# Table of Contents
+
 ```{tableofcontents}
 ```