Add redirect instructions to pages that were moved

[gkorland]

Add a redirection meta to pages that were moved:

1. "OpenTelemetry with FalkorDB-py Guide" was moved from /opentelemetry.html
2. "Building a Docker container" was moved from /building-docker.html
3. "Third-Party Components in FalkorDB" was moved from /third-party.html
4. "[EXPERIMENTAL] BOLT protocol support for FalkorDB" was moved from /bolt-support.html

Example:

redirect_from:
  - /opentelemetry.html
  - /opentelemetry