Change setup script

setup-dist-dir.sh

@@ -1,13 +1,12 @@
 # step 1 create basic dirs
-mkdir -p ./dist/en ./dist/zh-HK ./dist/zh-CN
+# mv all dist to temp dir for backup
+mv ./dist/zh-CN /tmp/ && mv ./dist/zh-HK /tmp/ && mv ./dist/en /tmp/
 
-# step 2 mv default en assets to dist/en
-mv ./dist/learn.html ./dist/en/
-mv ./dist/sitemap.xml ./dist/en/
-mv ./dist/404.html ./dist/en/
-mv ./dist/.nojekyll ./dist/en/
+# cp all dist file to dist/en
+mkdir -p ./dist/en
+mv ./dist/* ./dist/en/
+mv /tmp/zh-CN ./dist/ && mv /tmp/zh-HK ./dist/ && mv /tmp/en/* ./dist/en/
 
 # step 3 remove duplicated files
-rm -rf ./dist/zh-CN/assets ./dist/zh-HK/assets
 cp -rf ./dist/zh-CN/zh-CN/* ./dist/zh-CN/ && rm -rf ./dist/zh-CN/zh-CN
 cp -rf ./dist/zh-HK/zh-HK/* ./dist/zh-HK/ && rm -rf ./dist/zh-HK/zh-HK