Update link for CONFIG_ZMK_SETTINGS_SAVE_DEBOUNCE

[auipga]

Just fix the link.

PR check-list

• Branch has a clean commit history
• Additional tests are included, if changing behaviors/core code that is testable.
• Proper Copyright + License headers added to applicable files (Generally, we stick to "The ZMK Contributors" for copyrights to help avoid churn when files get edited)
• Pre-commit used to check formatting of files, commit messages, etc.
• Includes any necessary documentation changes.

[caksoylar]

Thanks! I see the same issue on backlight, underglow, outputs and power.md pages as well. Do you mind updating those too?