Update page.mdx (medusajs#11859)

Updated the starter_url description.

Author: AmbroziuBaban

www/apps/resources/app/medusa-cli/commands/new/page.mdx

@@ -59,7 +59,7 @@ medusa new [<dir_name> [<starter_url>]]
       </Table.Cell>
       <Table.Cell>
 
-      The name of the directory to create the Medusa application in.
+      The URL of the starter repository to create the project from.
       
       </Table.Cell>
       <Table.Cell>
@@ -183,4 +183,4 @@ medusa new [<dir_name> [<starter_url>]]
       </Table.Cell>
     </Table.Row>
   </Table.Body>
-</Table>
+</Table>