png dabs for socials

[ryanve]

these color dabs are CC0 and made with dab

[ryanve]

#cab 2400x2400

<link rel href="https://github.com/s9a/cab/issues/14">
<meta property=og:image content="https://user-images.githubusercontent.com/949985/93726357-9eb26380-fb83-11ea-9030-d297c32eacc1.png">
<meta property=og:image:alt content="#cab">

[ryanve]

#212 2400x2400

<link rel href="https://github.com/s9a/cab/issues/14">
<meta property=og:image content="https://user-images.githubusercontent.com/949985/93727755-a0335a00-fb8a-11ea-859c-8f4edef5c5ba.png">
<meta property=og:image:alt content="#212">

[ryanve]

yellow 2400x2400

<link rel href="https://github.com/s9a/cab/issues/14">
<meta property=og:image content="https://user-images.githubusercontent.com/949985/93727797-d7097000-fb8a-11ea-8b70-6da5ab09e664.png">
<meta property=og:image:alt content="yellow">