fix(command): wrong command

Author: brunobuddy

introduction.md

@@ -48,7 +48,7 @@ You can replace `--cursor` with another option if you're using a different AI to
 
 :::note
 
-You can also use `npm create` instead of `yarn create`.
+You can also use `npx create` instead of `yarn create`.
 
 :::
 

llm-rules.md

@@ -13,7 +13,7 @@ Rules are predefined guidelines and constraints that steer an AI assistant’s b
 Running the install command above will add the rules to the Manifest rules in your project.
 
 ```bash
-npm create manifest --cursor
+npx create manifest --cursor
 ```
 
 You can replace `--cursor` with another option if you're using a different AI tool;