doc: further documentation compliance and other small changes

[OliverBrotchie]

Currently, the documentation is far from the standards set out in Rust's Result and Option. The readme should be improved and include how to use this library via node. The JSDoc examples should also be updated and expanded upon.

Suggested Changes:

• Bring documentation in line with Rust's for Result and Option.
• Improve upon the readme and give examples of node.js usage.
• Further, expand upon the JSDoc examples to better illustrate the uses of this library.