docs: refactor used asset listing in README (#150)

Author: toddeTV

README.md

@@ -325,11 +325,41 @@ Used programs/ softwares, services and dependencies - besides the ones in `./pac
 - [Blender](https://www.blender.org/) was used as software for creating and editing 3D models.
 - [ChatGPT](https://chatgpt.com/) used for DALL-E image generation, text based questions and programming code generation.
 
-Used assets/ materials including images and 3D models:
-
-- ["Japanese Bridge Garden"](https://skfb.ly/oqyrN) by libblekibble, licensed under [Creative Commons Attribution](http://creativecommons.org/licenses/by/4.0/), in this project internally identified as `ea1`.
-- ["Low Poly Japanese Restaurant props & environment pack"](https://www.artstation.com/marketplace/p/yB0RG/low-poly-japanese-restaurant-props-environment-pack) by Asset Kings, licensed under [Creative Commons Attribution](http://creativecommons.org/licenses/by/4.0/), in this project internally identified as `ea2`.
-- ["Wheat Farm At Sunset"](https://skfb.ly/osu7t) by libblekibble is licensed under [Creative Commons Attribution](http://creativecommons.org/licenses/by/4.0/), in this project internally identified as `ea3`.
+Used assets/ materials including images and 3D models:<br>
+_(Prefix `ea` for `external asset`.)_
+
+- Internally identified with ID `ea1`:
+  - Name: `Japanese Bridge Garden`
+  - Cost: free
+  - License: [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/) (commercial use allowed, credits needed)
+  - Author: [libblekibble](https://sketchfab.com/libblekibble)
+  - Downloaded:
+    - Date: 2024-11-06
+    - From: [Sketchfab](https://skfb.ly/oqyrN)
+- Internally identified with ID `ea2`:
+  - Name: `Low Poly Japanese Restaurant props & environment pack`
+  - Cost: free
+  - License: [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/) (commercial use allowed, credits needed)
+  - Author: [Asset Kings](https://www.artstation.com/assetkings9)
+  - Downloaded:
+    - Date: 2024-06-28
+    - From: [ArtStation](https://www.artstation.com/marketplace/p/yB0RG/low-poly-japanese-restaurant-props-environment-pack)
+- Internally identified with ID `ea3`:
+  - Name: `Wheat Farm At Sunset`
+  - Cost: free
+  - License: [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/) (commercial use allowed, credits needed)
+  - Author: [libblekibble](https://sketchfab.com/libblekibble)
+  - Downloaded:
+    - Date: 2024-11-06
+    - From: [Sketchfab](https://skfb.ly/osu7t)
+- Internally identified with ID `ea4`:
+  - Name: `Japanese low poly building`
+  - Cost: free
+  - License: [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/) (commercial use allowed, credits needed)
+  - Author: [NemerionRae](https://sketchfab.com/NemerionRae)
+  - Downloaded:
+    - Date: 2024-11-06
+    - From: [Sketchfab](https://skfb.ly/otNuU)
 
 ## License