[ImgBot] Optimize images

*Total -- 438.73kb -> 200.66kb (54.26%)

/images/Netty/image_1595756928493.png -- 25.39kb -> 7.45kb (70.66%)
/images/Netty/image_1595756711656.png -- 21.98kb -> 6.75kb (69.3%)
/images/Netty/image_1595758329809.png -- 92.60kb -> 28.80kb (68.9%)
/images/Netty/image_1595757035360.png -- 67.31kb -> 24.48kb (63.63%)
/images/Netty/image_1595757110003.png -- 51.45kb -> 19.87kb (61.39%)
/images/Netty/image_1595751597062.png -- 59.28kb -> 34.29kb (42.16%)
/images/Netty/image_1595752125587.png -- 69.16kb -> 41.15kb (40.5%)
/images/Netty/image_1595757328715.png -- 51.54kb -> 37.87kb (26.52%)

Signed-off-by: ImgBotApp <[email protected]>

Author: ImgBotApp