Update doc/fun_activities.md

Co-authored-by: Filippo Cerpelloni <filippo.cerpelloni@gmail.com>

Author: Yufeng-He-Javis

doc/fun_activities.md

@@ -13,7 +13,8 @@
 -	[La fin de siécle](https://www.tripadvisor.it/Restaurant_Review-g188644-d1852850-Reviews-Fin_de_Siecle-Brussels.html)
 - [9 et voisins](https://www.tripadvisor.it/Restaurant_Review-g188644-d1065574-Reviews-9_et_Voisins-Brussels.html)
 
--	[Le brassin](http://www.lesbrassins.com/en)
+- [Le brassin](http://www.lesbrassins.com/en)
+
 
 ### Not Belgian restaurants