Include mainnet in Readme file · fetchoracle/usingfetch@cd53d20

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-node@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Run make solhint: contracts/FetchPlayground.sol#L4

Contract has 17 states declarations but allowed no more than 15

Run make solhint: contracts/FetchPlayground.sol#L27

Explicitly mark visibility of state

Run make solhint: contracts/FetchPlayground.sol#L36

Constant name must be in capitalized SNAKE_CASE

Run make solhint: contracts/FetchPlayground.sol#L70

Provide an error message for require

Run make solhint: contracts/FetchPlayground.sol#L70

Use Custom Errors instead of require statements

Run make solhint: contracts/FetchPlayground.sol#L109

Provide an error message for require

Run make solhint: contracts/FetchPlayground.sol#L109

Use Custom Errors instead of require statements

Run make solhint: contracts/FetchPlayground.sol#L119

Provide an error message for require

Run make solhint: contracts/FetchPlayground.sol#L119

Use Custom Errors instead of require statements

Run make solhint: contracts/FetchPlayground.sol#L140

Use Custom Errors instead of require statements

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