fix: incorrect plugin and add aws storage plugin (#208)

src/pages/core-candy-machine/preparing-assets.md

@@ -87,7 +87,8 @@ There is also nothing wrong with self hosting your images on metadata either in
 Umi has a few plugins that can aid the upload process via plugins. At the time the following plugins are supported:
 
 - Irys
-- NFT Storage
+- NFT Storage 
+- AWS 
 
 #### Uploading to Arweave via Irys with Umi
 

src/pages/token-metadata/mint.md

@@ -38,7 +38,7 @@ const uri = await umi.uploader.uploadJson({
 
 To select the Uploader of your choice using Umi, simply install the plugin provided by the Uploader.
 
-For instance, here is how we can install the NFT.Storage plugin:
+For instance, here is how we can install the irysUploader plugin for interacting with the Arweave network:
 
 ```ts
 import { irysUploader } from '@metaplex-foundation/umi-uploader-irys'