updated footer links

vue-theme/src/components/footer.vue

                         li
                             router-link(to="/page/center")   Info
                         li
-                            router-link(to="/exhibition")   Exhibitions
+                            router-link(to="/exhibition/sorted/by-current-and-upcoming")   Exhibitions
                         li 
                             router-link(to="/event/sorted/by-current-and-upcoming")   Events 
                         li
                             router-link(to="/event?type=talks")   Talks & Interviews
             li
                 h5
-                    router-link(to="") Education 
+                    router-link(to="/guide") Education 
                     ul.f-col
                         li
                             router-link(to="/guide")   Guides 
                             router-link(to="/page/library")   Library 
             li
                 h5
-                    router-link(to="") News 
+                    router-link(to="/blog") News 
                     ul.f-col
                         li
                             router-link(to="/blog")   Blog Posts