docs: shorten npx commands (#4652)

docs/content/recipes/marketplace.mdx

@@ -130,7 +130,7 @@ To associate these entities with the `Store` entity, you need to extend and cust
 
   ```bash npm2yarn
   npm run build
-  npx @medusajs/medusa-cli migrations run
+  npx medusa migrations run
   ```
 
   You can extend other entities in a similar manner to associate them with a store.
@@ -241,7 +241,7 @@ You can also extend services if you need to customize a functionality implemente
 
   ```bash
   npm run build
-  npx @medusajs/medusa-cli develop
+  npx medusa develop
   ```
 </details>
 
@@ -288,7 +288,7 @@ To listen to events, you need to create Subscribers that subscribe a handler met
 
   ```bash
   npm run build
-  npx @medusajs/medusa-cli develop
+  npx medusa develop
   ```
 </details>