Add draft with social cards

[plaguss]

Description

I push this PR so we can take a look at the default social cards. I still need to discover how to add a custom description to all the cards. For the docs we have created in /docs folder we can write it directly in the .md file, but still need to know how to do it for the reference we have from the docstrings.

Would close #183

[plaguss]

I have added a sentence/small description for the main pages in our docs, for example:

The remaining pages will render with the default content:

Let me know what you think of those and we can iterate.

[dvsrepo]

Awesome!