Fix a typo and update custom item guide (#124)

* Update custom model info with link

* Fix typo

Author: foxeddev

src/routes/guide/adding-new-features/custom-items/intro/+page.svx

@@ -69,7 +69,6 @@ item:
 
 `minecraft:stick` can be any item you want. All custom items need to be based on
 an existing item. We do not yet have the functionality to create our own item
-IDs. However, we can make use of the `custom_model_data` (or `custom_model` in
-recent snapshots) component to change the model or texture of the item.
+IDs. However, we can make use of the `item_model` component to change the model or texture of an item as explained in [this guide](/guide/adding-new-features/custom-items/models).
 
 :::

src/routes/wiki/concepts/commands/+page.svx

@@ -27,7 +27,7 @@ function in chat, all the commands in the function will have the same context as
 if you ran them in chat.
 
 Functions ran by the game, for instance tick, load, and scheduled functions,
-will have the follwing context:
+will have the following context:
 
 - the executor is the game server. If you use `@s` in a command, it will not
   refer to any entity.