chore(readme): slim down README and update badge (#27)

* chore(readme): update socket.dev badge

Signed-off-by: nerdalytics <97166791+nerdalytics@users.noreply.github.com>

* chore(readme): slim down root README to reduce published package size

Move full documentation to .github/README.md (rendered by GitHub) and
keep a minimal README in root with installation, quick start, and link
to full docs.

* chore: bumb version

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Signed-off-by: nerdalytics <97166791+nerdalytics@users.noreply.github.com>

Author: nerdalytics