Clarify blockconfirmations should be set in networkConfig file while using TypeScript

[RowinVanAmsterdam]

Describe the enhancement

Make clear that blockconfirmations should be defined in helper-hardhat-config.ts file if you're using TypeScript instead of JavaScript.

blockconfirmations does not exist as configuration property in Hardhat (docs).

It will throw the following error:

  Property 'blockConfirmations' does not exist on type 'HardhatNetworkConfig'.

Issue is based on 'blockConfirmations' does not exist in type 'NetworkUserConfig'. #3025

[RowinVanAmsterdam]

Created PR#1743

[anannyenaik]

@PatrickAlphaC

[PatrickAlphaC]

Yes! Thank you for this. Apologies for the confusion.