added scaffold eth configuration doc

[KcPele]

Description

Added a section in the readme.md that explains how to make use of scaffold-eth config file

Concise description of proposed changes, We recommend using screenshots and videos for better description

Additional Information

• I have read the contributing docs (if this is your first contribution)
• This is not a duplicate of any existing pull request

Related Issues

Closes #{issue number}

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Your ENS/address:
kcpele.eth

[Pabl0cks]

Thank you for the contribution to the readme @KcPele, that's a important section that deserved to be added.

I am reviewing it and doing a few tweaks. Hopefully I can submit my contributions tomorrow.
If possible, I'll commit my contributions directly on your fork so that it gets added to your PR.

[Pabl0cks]

I've pushed a few tweaks on the Scaffold configuration section:

• Move the section under "Deploying your NextJS App" parent section
• Create a link on the Readme index
• Tweaks on the parameter descriptions and formatting
• Add extend and import explanation paragraph at the end

[Pabl0cks]

As a begginer I saw option 1 easier to implement, so adapted Shiv's example a bit and pushed it with a couple more changes:

1. Added walletConnectProjectId config explanation.
2. Fixed alchemyApiKey config explanation, with the right variable name and .env file.

[rin-st]

Hey, the config was changed. https://github.com/scaffold-eth/scaffold-eth-2/pull/412/files#diff-f8931f9d5d91829368ab5eaeaa5253e0924466bdd704fbec7ebbe72fa4cf710d Please update the readme accordingly

[Pabl0cks]

TYSM for letting me know @rin-st! I just pushed the changes of the Readme, documenting the changes in the config for burner wallets.

[KcPele]

TYSM for letting me know @rin-st! I just pushed the changes of the Readme, documenting the changes in the config for burner wallets.

Have you made the changes?

[Pabl0cks]

Have you made the changes?

Yeah, added the changes to the Readme on my previous commit

[technophile-04]

Tysm @Pabl0cks I think the updates looks great !!!

[carletex]

This is looking good, thanks all!!