Fix Dockerfile for latest nginx docker image
Fix Dockerfile for latest nginx docker image

pclubiitk/student-search,yashsriv/student-search-1,yashsriv/student-search-1,yashsriv/student-search-1,yashsriv/student-search-1,pclubiitk/student-search,pclubiitk/student-search,yashsriv/student-search-1,pclubiitk/student-search,pclubiitk/student-search