The API is free to use.

Added https://music-api.musikki.com/reference#artists for music category.

Plino is an intelligent spam filtering system built on the giant shoulders of nltk.

**Features**

- REST API
- Unlimited users

Add transport API for Boston, MA, USA

'involement' → 'involvement'

Provide link to Telegram social api (to create Bot or Read / Write datas)

Minor change. Yelp API description had a typo: "bussiness". Simply fixed this to "business".

The correct acronym for Transport for London is "TfL" with a lowercase "f".