Refine README to include the non-weighted variant reference and a metrics example

Key Features

• Refine README to include the non-weighted variant reference and a metrics example.

README and Documentation improvements

Key Features

• README improvements: Added a Table of Contents, and enhanced the Getter Methods section with a clarification regarding O(1) time complexity.
• Enhanced documentation of getter method amountOfUncaughtErrors.

README and Documentation improvements

Key Features

• README improvements: Adding API and Getters sections.
• Documentation improvements.

Unit Test Refinements: Improved Readability and Terminology Consistency

Key Features

• Unit Test Refinements: Improved Readability and Terminology Consistency.

Split unit tests into two files and enhance README

Key Features

• Unit Tests: Split fundamental operations and weighted scenarios into two separate test files.
• README: Add section on the misleading promise-pool terminology commonly used to describe promise semaphores.

Unit Tests improvements

Key Features

• Unit Tests: Improving waitForAllExecutingJobsToComplete tests, and general readability improvements.

Improvements for Unit Tests and README

Key Features

• README: Refined comments for coding examples.
• Unit Tests: Refined descriptions and comments for enhanced clarity.
• Implementation: An empty execution slot will contain 'undefined' instead of 'null'.

Docs and README refinements

Key Features

• Docs and README refinements.

Docs and README refinements

Key Features

• Docs and README refinements.

README refinements

Key Features

• README refinements