Contribution guidelines for TS-SDK packages

[protocolwhisper]

Hi, I wanna push this contribution but I don’t know if any guidelines for contributing in the repo exist.

Contribution:

Comparing FuelLabs:master...protocolwhisper:master · FuelLabs/fuels-ts

[anderson]

Please, check the Contributing section on the docs:

• https://fuellabs.github.io/fuels-ts/CONTRIBUTING.html

[anderson]

The CONTRIBUTING guidelines can now be found at:

• https://github.com/FuelLabs/fuels-ts/blob/master/CONTRIBUTING.md