[erickolb]

Description

Fixes the broken Editing Guidelines link in README.md to point to the current documentation: https://metron.cloud/wiki/user-documentation/editing-guidelines/

Checklist

• Tests pass locally (pytest) - Not run; documentation-only change.
• Linted (ruff check . --fix && ruff format .) - Not run; no Python changes.
• Translation strings wrapped and message catalogs updated - N/A; no template, form, or view changes.
• Migrations included, if models changed - N/A; no model changes.

[bpepple]

Thx!