fix image sources

Author: KameiKojirou

src/content/docs/index.mdx

@@ -22,7 +22,7 @@ import { Card, CardGrid } from '@astrojs/starlight/components';
 
 <CardGrid stagger>
 	<Card title="Grow Graphics Documentation" icon="open-book">
-		![alt text](./src/assets/gdgrowlogo.svg)
+		![alt text](../../assets/gdgrowlogo.svg)
 		*Go Community Supported GDExtension bindings for Godot*
 
 		- [Our Documentation](https://learn.grow.graphics/documentation)
@@ -31,13 +31,13 @@ import { Card, CardGrid } from '@astrojs/starlight/components';
 		- [Grow-Graphics GD GitHub Repo](https://github.com/grow-graphics/gd)
 	</Card>
 	<Card title="Godot Game Engine" icon="add-document">
-		![Godot Game Engine](./src/assets/godot-logo.svg)
+		![Godot Game Engine](../../assets/godot-logo.svg)
 		- [Godot Game Engine](https://godotengine.org)
 		- [Godot's Documentation](https://godotengine.org)
 		- [GDExtension](https://docs.godotengine.org/en/stable/tutorials/scripting/gdextension/index.html)
 	</Card>
 	<Card title="Go Programming Language" icon="open-book">
-		![Go Programming Language](./src/assets/go-gopher.jpg)
+		![Go Programming Language](../../assets/go-gopher.jpg)
 		- [Go Programming Language](https://go.dev/)
 		- [Effective Go](https://go.dev/doc/effective_go)
 		- [Go Standard Library](https://pkg.go.dev/std)