feature-request(chore/readme): Add the link of the documentation into the readme.

[maissani]

FEATURE REQUEST : CHORE / README

What's need to be done:

• [ ] Add a link to the documentation like following example.

Example

Resources

Documentation

• Trails Documentation

Tutorials

• Getting started
• Create a custom Trailpack

Videos

• Getting Started with Trails.js

Support

• Gitter chat room

[maissani]

Should fix this issue #206