Update success stories

[RTJ]

I think, would be nice to update info on:
https://www.ruby-lang.org/en/documentation/success-stories/

Maybe it will be good to reject Blue Sequence from Web Applications (the current provided link
http://www.bluefountain.com/supply-chain-management/ points to Django debug error page, I think that's ridiculous.)

And I think it would be nice to add links like GitHub, Shopify, Twitch, Kickstarter ? (
Or link to top ruby / rails apps or projects,

The information is very outdated ... and the current information inspires to NOT use ruby ...

[matkoniecz]

https://github.com/ruby/www.ruby-lang.org/blob/64321ebc4abb1dbd8b1712b3a73418f2ae389970/en/documentation/success-stories/index.md is the affected file

[matkoniecz]

It appears to be duplicate of #732

[siaw23-retired]

+1