User apilayer-admin broke the test, this commit solves that.

Commits that broke the tests:

- 5563258502
- df88996ed0
- 6c895d1e57

alphabetical reordering for airtable api

Added Airtable API under Documents & Productivity

Co-authored-by: Matheus Felipe <50463866+matheusfelipeog@users.noreply.github.com>

This service has entered the Sunset phase. On December 31, 2020, the Ticksel service reached the end of its useful life (“EOL”).

Ref 1: https://www.ticksel.com/
Ref 2: issue #1902 

resolve #1902

Add HackerOne API to Security

Reduced SGWeatherAPI description length

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[squash-link]: <https://github.com/todotxt/todo.txt-android/wiki/Squash-All-Commits-Related-to-a-Single-Issue-into-a-Single-Commit>

Co-authored-by: Matheus Felipe <50463866+matheusfelipeog@users.noreply.github.com>

Co-authored-by: Matheus Felipe <50463866+matheusfelipeog@users.noreply.github.com>

Co-authored-by: Matheus Felipe <50463866+matheusfelipeog@users.noreply.github.com>

Although there is already an heroku based keyless unofficial APOD API. Here adding an offcial API which requires APIKey.

Signed-off-by: Florian BOUILLON <florian.bouillon@delta-wings.net>

Add openAFRICA API to Open Data

Add Tyk API to Development

Squash

Co-Authored-By: Matheus Felipe <50463866+matheusfelipeog@users.noreply.github.com>

Barter.vg is a website to trade your spare game serial codes. However, it also provides a lot of data about games, bundles and more.

This API is inactive.

resolve #1860

Added a link to Entur's apis and datasets, providing public transport data for Norway.