DEFAULT_UPLOAD_IMAGES and DEPLOY_VERIFIER_ADDRESS

[criadoperez]

This PR has two changes:

1. The comment for the uploadImages function says "If DEPLOY_UPLOAD_IMAGES is not set, defaults to true." However, the code seems to default to false. Assuming here, the code is correct and not the comment.
2. Typo Correction: There's a typo in the environment variable name DEPLOY_VERFIER_ADDRESS. Corrected to DEPLOY_VERIFIER_ADDRESS.

[nategraf]

Thanks for these fixes!