📖 Clarify references to the Scorecard webviewer

[shouryathakur-sorcerer]

What kind of change does this PR introduce?

This PR introduces a documentation update to clarify what the “Scorecard webviewer” refers to and how it should be used.

• PR title follows the guidelines defined in our pull request documentation

What is the current behavior?

The documentation refers to a “webviewer” without clearly explaining what it is, where it is hosted, or how users should interpret the term.

What is the new behavior (if this is a feature change)?

The documentation now explicitly explains that the Scorecard webviewer is the web UI available at https://scorecard.dev/viewer/ and clarifies how the URL template should be used.

• Tests for the changes have been added (not applicable for documentation-only changes)

Which issue(s) this PR fixes

Fixes #3986

Special notes for your reviewer

This change is documentation-only and does not affect Scorecard behavior or outputs.

Does this PR introduce a user-facing change?

Clarified documentation describing the Scorecard webviewer and its URL template.

[shouryathakur-sorcerer]

Thank You for reviewing!
This PR is documentation-only and ready for review whenever convenient.

[github-actions]

This pull request has been marked stale because it has been open for 10 days with no activity

[spencerschrock]

Take a look at how this is rendering on github
https://github.com/shouryathakur-sorcerer/scorecard/blob/1afd38d5a5d3c7dc27cbb6f6de8fe5820d5071cb/docs/faq.md#can-i-preview-my-projects-score

You'll need to fix the link syntax to fix whatever you were intending.

[github-actions]

This pull request has been marked stale because it has been open for 10 days with no activity