[ImgBot] Optimize images (#3)

*Total -- 763.46kb -> 501.36kb (34.33%)

/assets/images/custom-deprecated-section-5b7fd7a5deebdcddb64e68c8958f355a.png -- 243.32kb -> 147.11kb (39.54%)
/img/showcase/437687077-1e69a5c0-0cec-40d4-8204-4b6bd678475b.png -- 147.92kb -> 97.05kb (34.39%)
/img/showcase/437685696-fb1a1f42-7195-4a14-b157-4fec9d9ed4db.png -- 171.19kb -> 117.25kb (31.51%)
/img/showcase/437686456-2a63f51c-5554-4d6a-97ad-0366d89625a1.png -- 180.35kb -> 124.35kb (31.05%)
/assets/images/examples-c219d2f7b930b0547050cd51928bffcf.png -- 20.69kb -> 15.60kb (24.63%)

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

Author: imgbot[bot]