Support for atcoder

[shanto86]

Please add support for atcoder. Thanks!

[slycelote]

Atcoder should now be support via Competitive Companion browser add-on.

[mingyEx]

Hi, I found competitive-companion, but it doesn't say how I should make Competitive Companion work with VsCaide, could you please clarify this, thanks.

[mingyEx]

I have found it there
I didn't notice it the first time I looked at it, and the second time I looked at it I was preconceived that there must not exist and fell into a misconception of thinking.
Hahaha