Fix typo Update bitcoind-signet.md

[MonkeyKing44]

Pull Request Title

Fix typo Update bitcoind-signet.md

Description

This PR fixes a typo in the bitcoind-signet.md file. The word "provded" has been corrected to "provided."

Changes:

• Corrected the typo: "provded" → "provided" in the bitcoind-signet.md file.

Related Issues

• #3456 (replace with relevant issue number, if applicable)

How to Test

• Review the bitcoind-signet.md file to ensure the typo has been corrected.

Checklist:

• The code has been tested.
• The documentation has been updated (if necessary).
• I have followed the contributing guidelines.

Notes:

• This is a minor fix and does not affect the functionality of the project.