Version 7.8.5

Merge pull request #64 from kyrofa/feature/d3_7.0.0

Update D3 to 7.0.0

Use https for security

Merge pull request #62 from kyrofa/update-version-5.16.0

Update D3 to 5.16.0

Version 6.6.2

Version 5.16.0

Merge pull request #38 from kdelchev/update-version-3-5-16

Upgrade D3 to version 3.5.16

Update README.md

Merge pull request #32 from kdelchev/create_task

Create task

Add d3-rails version 2.9.1