docs: added icosahedron

docs/.vitepress/config.ts

@@ -90,6 +90,7 @@ export default defineConfig({
               { text: 'Box', link: '/cientos/shapes/box' },
               { text: 'Circle', link: '/cientos/shapes/circle' },
               { text: 'Cone', link: '/cientos/shapes/cone' },
+              { text: 'Icosahedron', link: '/cientos/shapes/icosahedron' },
               { text: 'Plane', link: '/cientos/shapes/plane' },
               { text: 'Ring', link: '/cientos/shapes/ring' },
               { text: 'Sphere', link: '/cientos/shapes/sphere' },

docs/cientos/shapes/icosahedron.md

@@ -0,0 +1,16 @@
+# Icosahedron
+
+![](/cientos/icosahedron.png)
+
+The `cientos` package provides a `<Icosahedron />` component that serves as a short-cut for a `IcosahedronGeometry` and a `MeshBasicMaterial` with a `Mesh` object.
+
+## Usage
+
+```html
+<Icosahedron :args="[1, 0]" color="red" />
+
+// Icosahedron with a custom material transformations
+<Icosahedron ref="icosahedronRef" :args="[1, 0]" :position="[2, 4, 0]">
+  <TresMeshToonMaterial color="red" />
+</Icosahedron>
+```