Restyle docs with a clean GitHub-like theme

**Metr Tracking Issue**

**Category**: large_feature
**Commits**: 1
**Lines changed**: 2145 (+2073/-72)
**Time span**: 0 hours

**PRs**:
- #2 - Restyle docs with a clean GitHub-like theme

<details>
<summary>Commit details</summary>

- `41a48bc` Restyle docs with a clean GitHub-like theme (#2) (+2073/-72)

</details>