feat: yi-s add

Author: afeiship

modules/yarn.sh

@@ -12,8 +12,9 @@ alias ys='yarn start';
 alias yst='yarn storybook';
 alias yt='yarn test';
 alias ya='yarn add ';
-alias ya-d='yarn add -D ';
-alias ya-g='yarn global add ';
+alias yi-s='yarn add'
+alias yi-d='yarn add -D ';
+alias yi-g='yarn global add ';
 alias yr='yarn remove ';
 alias yu='npm run upgrade';
 alias yv='npm run version';