docs: shorten npx commands (#4652)

docs/content/modules/taxes/backend/create-tax-provider.md

@@ -202,7 +202,7 @@ npm run build
 Run your backend to test it out:
 
 ```bash npm2yarn
-npx @medusajs/medusa-cli develop
+npx medusa develop
 ```
 
 Before you can test out your tax provider, you must enable it in a region. You can do that either using the [Medusa Admin dashboard](../../../user-guide/taxes/manage.md#change-tax-provider) or using the [Update Region admin endpoint](../admin/manage-tax-settings.mdx#change-tax-provider-of-a-region).

docs/content/modules/taxes/backend/tax-calculation-strategy.md

@@ -120,7 +120,7 @@ npm run build
 Run your backend to test it out:
 
 ```bash npm2yarn
-npx @medusajs/medusa-cli develop
+npx medusa develop
 ```
 
 To test it out, you can simulate a checkout flow and check the calculated taxes to see if it matches the logic you implemented in the `calculate` method.