Image meta fields

[ant-tar]

Affected page(s)

All doc pages

What needs to be improved?

Next meta fields should be added, otherwise social sharing looks like incorrect, please find attached image:

<meta name="twitter:image">
<meta name="og:image">

Current logo can be used for value attribute. Otherwise social network will grab some custom non relevant image(example shows image from right Opencollective block).

[Mark-H]

Might be cool to create some automatic page specific images, incorporating the page title and perhaps authors of the page in a simple design?

Open to design ideas!

[Mark-H]

Added in #355 (not yet in production)