docs(readme): added CDN link

[HZooly]

As mentionned in #207

[HZooly]

@smitpatelx CDN link point to a fork of the current repository, but the original one.

[smitpatelx]

Check this, I already made that changes before months. I don't know what else should I do to change this. https://github.com/cdnjs/packages/blob/master/packages/v/vue-tour.json

[HZooly]

Then I don't get why GitHub button leads to your fork, is that a bug from cdnjs?

[smitpatelx]

Yes, i guess its not uptodate or it might be because of cache. They are using static files, so totally possible.

[HZooly]

Ok right!
What about Vue Tour CSS? Don't you need it from CDN too?

[smitpatelx]

Yes you can add that as well.
Made a PR to change description and asked question about the old link.
cdnjs/packages#893

[smitpatelx]

Added css files as well. Awaiting approval from cdnjs.

[HZooly]

Perfect! Waiting for cdnjs merge before merging this one. Thank you!

[jimaek]

You can also use jsDelivr which will also give you detailed stats per file and per version https://www.jsdelivr.com/package/npm/vue-tour

https://cdn.jsdelivr.net/npm/[email protected]
https://cdn.jsdelivr.net/npm/[email protected]/dist/vue-tour.umd.min.js