Update config.mts

Author: revtutorials

docs/.vitepress/config.mts

@@ -23,7 +23,7 @@ export default defineConfig({
           { text: 'IV- The law of maximum profit and the principal contradiction in the imperialist epoch', link: '/en/4-profit' },
           { text: 'V- Unite under Maoism!', link: '/en/5-unite' },
           { text: 'References', link: '/en/6-references' }
-        ]
+        ],
         text: '中文译本（施工中）/Chinese Translation (Under construction)',
         items: [
           { text: '目录', link: '/zh/0-summary' },