Cut 80% of the source package size by optimizing/cleaning doc images (#1586)

docs/README.md

@@ -471,7 +471,7 @@ you can specify another directory if needed with `./uninstall --prefix ~/.local`
 
 ---
 
-![distro-box](./assets/distro-box.png)
+![distro-box](./assets/distro-box.webp)
 
 <sub>This artwork uses [Cardboard Box](https://skfb.ly/6Wq6q) model by [J0Y](https://sketchfab.com/lloydrostek)
 licensed under [Creative Commons Attribution 4.0](http://creativecommons.org/licenses/by/4.0)  

docs/_includes/head.html

@@ -16,7 +16,7 @@
   
   <!-- Twitter -->
   <meta property="twitter:title" content="{{site.title}}" />
-  <meta property="twitter:image" content="{{ "/assets/card.png" | prepend: site.baseurl | prepend: site.url }}" />
+  <meta property="twitter:image" content="{{ "/assets/card.web" | prepend: site.baseurl | prepend: site.url }}" />
   <meta property="twitter:card" content="summary_large_image" />
   <meta property="twitter:description" content="{{site.description}}" />
 
@@ -24,5 +24,5 @@
   <meta property="og:title" content="{{ site.title }}" />
   <meta property="og:url" content="{{ site.url }}" />
   <meta property="og:description" content="{{ site.description }}" />
-  <meta property="og:image" content="{{ "/assets/card.png" | prepend: site.baseurl | prepend: site.url }}" />
+  <meta property="og:image" content="{{ "/assets/card.webp" | prepend: site.baseurl | prepend: site.url }}" />
 </head>

docs/assets/credits.md

@@ -8,7 +8,7 @@ Current logo was created by [daudix-UFO](https://github.com/daudix-UFO)
 
 ## Images
 
-Assets used in `distro-box.png`
+Assets used in `distro-box.webp`
 
 - [Cardboard Box](https://skfb.ly/6Wq6q) model by
   [J0Y](https://sketchfab.com/lloydrostek) licensed under
@@ -19,7 +19,7 @@ Assets used in `distro-box.png`
 - Distro icons by
   [u/walrusz](https://www.reddit.com/r/linux/comments/nt1tm9/i_made_a_uniform_icon_set_of_linux_distribution)
 
-Assets used in `distro-box-alt.png`
+Assets used in `distro-box-alt.webp`
 
 - ['90 Light Commercial Truck](https://skfb.ly/ootyy) model by
   [Daniel Zhabotinsky](https://sketchfab.com/DanielZhabotinsky) licensed under