feat: add bell labs events news (#6529)

lib/router.js

@@ -3744,6 +3744,9 @@ router.get('/idaily/today', require('./routes/idaily/index'));
 // 北屋
 router.get('/northhouse/:category?', require('./routes/northhouse/index'));
 
+// Bell Labs
+router.get('/bell-labs/events-news/:category?', require('./routes/bell-labs/events-news.js'));
+
 // 中国科学院青年创新促进会
 router.get('/yicas/blog', require('./routes/yicas/blog'));