As of Jan. 3rd 2019 Yahoo Weather API has been retired.

* Update README.md

* Update README.md

* Add 7timer! Weather Api

* Add 7timer! Weather Api, Fix sorting errors

* Link to the documentation

This project was shut down two months ago.

Clash Royale is protected by an API key

API has been ceased :(

* Add Coinlib.io

* Add link to API doc

* Update README.md

* Update README.md

Closes #895

Closes #935

Added mod.io, an open cross-platform API for games to support mods.

Added a free Fortnite API, that also supports the 'Daily INGAME store'

* Update README.md

* Update README.md

According to the documentation, v5 is deprecated as of 12/2018. Update
it to v6 and also fix the link formatting (`-v5` previously redirected
to `/v5` but `-v6` does not redirect to `/v6`).

CoinMarketCap does require an `apiKey`