docs: fix broken markdown links in translated readmes and examples

[nexpectArpit]

Summary

• Problem: In all 7 translated README.md files (Spanish, French, Chinese, Hindi, etc.), there is a broken link pointing to docs/long-running-task-notifications.md which no longer exists. Additionally, in examples/README.md, there are broken links pointing to ../openapi.yaml (which doesn't exist) and an incorrect path to LICENSE.md.
• Why it matters: Broken links confuse new users and developers trying to navigate the repository documentation and examples, leading to a poorer developer experience.
• What changed:
  • Updated all 7 translated READMEs to point to the correct new file: docs/NOTIFICATIONS.md.
  • Removed the dead openapi.yaml link from examples/README.md.
  • Fixed the LICENSE.md link in examples/README.md to point to the correct root directory (../LICENSE.md).

Change Type (select all that apply)

• Bug fix
• Feature
• Refactor
• Documentation
• Security hardening
• Tests
• Chore/infra

Scope (select all touched areas)

• Server / API endpoints
• Extensions (DID, x402, etc.)
• Storage backends
• Scheduler backends
• Observability / monitoring
• Authentication / authorization
• CLI / utilities
• Tests
• Documentation
• CI/CD / infra

User-Visible / Behavior Changes

None. Purely markdown documentation link fixes.

Security Impact (required)

• New permissions/capabilities? No
• Secrets/credentials handling changed? No
• New/changed network calls? No
• Database schema/migration changes? No
• Authentication/authorization changes? No
• If any Yes, explain risk + mitigation: N/A

Event tags: apertre3.0 easy

[raahulrahl]

Nice one.