Update Vector Express to match v2.0

Move CONTRIBUTING.md to the root folder

Add NBP (National Bank of Poland) currency exchange rates API

Add VALR (Cryptocurrency Exchange in South Africa) API

Update the link of Launch Library 2 to its homepage for APIs

Add Foreca Weather API

Added IP2WHOIS API

Changed waifu.pics url

changed to to api docs in stead of main page

Added QWeather in README.md

Add catAPI

Added Visual Crossing Weather API

Russian State Duma Open Data

Added Dark Souls 3 API

Adds shrtlnk.dev url shortener

Add localizr API

Add a RESTful free API to check the weather

Add 'User-Agent' to the auth_keys array in the validate_format script

Add BigDataCloud API for IP and Geolocation

Added Etsy API

Adds Humble Bundle API

Bump httplib2 from 0.18.0 to 0.19.0 in /build

Add Spoonacular Food API

Added zip codes and streets from Brazil API

Update to Meteorologisk Institutt API.

Add Giant Bomb API

add cryptomarket api - cryptocurrency exchange api

Indeed has discontinued their API. See https://stackoverflow.com/a/66036140/13752077

The PR #1610 added an duplicate link to the government section

Added 1 api in the Government category

Add API la Data Verte - Environment topic

Add MLB API