[ImgBot] Optimize images

*Total -- 8,700.85kb -> 7,484.69kb (13.98%)

/content/zh-cn/docs/useful-info/img/tax-reg.jpg -- 382.31kb -> 306.00kb (19.96%)
/static/images/medicine/estradiol-valerate/progynova-in.png -- 2,033.40kb -> 1,669.93kb (17.87%)
/content/zh-cn/docs/useful-info/img/passport-obrv.jpg -- 2,026.57kb -> 1,731.54kb (14.56%)
/content/zh-cn/docs/psyco/shanghai/shmhc/criteria.jpg -- 2,904.71kb -> 2,517.20kb (13.34%)
/content/zh-cn/docs/srs/china/sh411/preoperative-preparation/nurseitem.jpg -- 156.93kb -> 145.18kb (7.49%)
/content/zh-cn/docs/psyco/guangdong/jia-yanbin/proof.jpg -- 981.02kb -> 910.63kb (7.18%)
/static/images/medicine/estradiol-valerate/progynova-2mg.jpg -- 80.91kb -> 75.66kb (6.49%)
/static/images/medicine/estradiol-valerate/progynova.jpg -- 134.99kb -> 128.55kb (4.77%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp