Two fixes for info_gan.md example Code (#15323)
Two fixes for info_gan.md example Code (#15323)

* Two fixes for info_gan.md example Code

* retrigger CI

ForkedReposBak/mxnet,szha/mxnet,leezu/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,ForkedReposBak/mxnet,leezu/mxnet,tlby/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,sxjscience/mxnet,leezu/mxnet,reminisce/mxnet,apache/incubator-mxnet,szha/mxnet,larroy/mxnet,tlby/mxnet,szha/mxnet,szha/mxnet,sxjscience/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,sxjscience/mxnet,reminisce/mxnet,larroy/mxnet,reminisce/mxnet,leezu/mxnet,leezu/mxnet,reminisce/mxnet,sxjscience/mxnet,tlby/mxnet,reminisce/mxnet,tlby/mxnet,zhreshold/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,eric-haibin-lin/mxnet,leezu/mxnet,szha/mxnet,ForkedReposBak/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,tlby/mxnet,eric-haibin-lin/mxnet,yajiedesign/mxnet,yajiedesign/mxnet,szha/mxnet,eric-haibin-lin/mxnet,leezu/mxnet,apache/incubator-mxnet,larroy/mxnet,larroy/mxnet,yajiedesign/mxnet,zhreshold/mxnet,sxjscience/mxnet,reminisce/mxnet,reminisce/mxnet,szha/mxnet,tlby/mxnet,yajiedesign/mxnet,larroy/mxnet,tlby/mxnet,ForkedReposBak/mxnet,eric-haibin-lin/mxnet,sxjscience/mxnet,eric-haibin-lin/mxnet,apache/incubator-mxnet,DickJC123/mxnet,szha/mxnet,zhreshold/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,larroy/mxnet,DickJC123/mxnet,sxjscience/mxnet,ForkedReposBak/mxnet,tlby/mxnet,tlby/mxnet,zhreshold/mxnet,larroy/mxnet,zhreshold/mxnet,apache/incubator-mxnet,leezu/mxnet,ForkedReposBak/mxnet,zhreshold/mxnet,reminisce/mxnet,szha/mxnet,DickJC123/mxnet,zhreshold/mxnet,zhreshold/mxnet,ForkedReposBak/mxnet,larroy/mxnet,reminisce/mxnet,leezu/mxnet,tlby/mxnet,reminisce/mxnet,sxjscience/mxnet,DickJC123/mxnet,yajiedesign/mxnet