Adds link to VALR's (Cryptocurrency Exchange in South Africa) API documentation

The Boston MBTA API provides easy access to MBTA schedules, alerts, and real-time transit information.

Removed GoodReads

Goodreads API being phased out

https://www.goodreads.com/api

"As of December 8th 2020, Goodreads is no longer issuing new developer keys for our public developer API and plans to retire these tools."

Fix #1313

Changed "Zippopotam" to the full name of the service: "Zippopotam.us" (rhymes with hippopotamus)

Added SpotSense API information to geocoding section

I tried this API out and I was blocked by CORS. Thought it would be helpful to others to quickly update this one.

QWeather, also named HeWeather, provides free weather api for developers.

Co-authored-by: Yann Bertrand <5855339+yannbertrand@users.noreply.github.com>

Co-authored-by: Yann Bertrand <5855339+yannbertrand@users.noreply.github.com>

Co-authored-by: Yann Bertrand <5855339+yannbertrand@users.noreply.github.com>

Bumps [httplib2](https://github.com/httplib2/httplib2) from 0.9.2 to 0.18.0.
- [Release notes](https://github.com/httplib2/httplib2/releases)
- [Changelog](https://github.com/httplib2/httplib2/blob/master/CHANGELOG)
- [Commits](https://github.com/httplib2/httplib2/compare/0.9.2...v0.18.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Co-authored-by: Yann Bertrand <5855339+yannbertrand@users.noreply.github.com>