docs: enhance import documentation with command syntax and examples

Author: NonSwag

content/docs/worlds/manage/import.mdx

@@ -1,3 +1,32 @@
 ---
 title: Import an existing world
 ---
+
+To import an existing world, you can use the `/world import <world> [<key>] [<dimension>] [<generator>]` command.
+
+<Callout type="info" title="Command Syntax">
+  - If `<key>` is undefined, a matching key will be created, if possible.
+  - The `<dimension>` argument denotes which dimension will be imported.
+  If undefined, the default dimension (`minecraft:overworld`) will be used.
+  - The `<generator>` defines the custom world generator to use for the imported world.
+</Callout>
+
+## Examples
+
+To import a specific dimension of a world, you can use the following command:
+
+```
+/world import End worlds:end minecraft:the_end
+```
+
+To import a world with a specific generator, you can use the following command:
+
+```
+/world import "My World" worlds:my_world TheGeneratorPlugin
+```
+
+To import a world without any specific key, dimension or generator, you can use:
+
+```
+/world import Survival
+```