added hello.cr
added hello.cr

wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection,wellflat/hello-collection