[Feature Request] Add verbose/debug flag for better troubleshooting

I am experiencing issues with tldr when trying to fetch the page for tar. There is no error message other than "Page not found.":

❯ tldr tar
✔ Page not found. Updating cache...
✔ Creating index...
Page not found.

This issue seems to be related to my complex network setup (company laptop with custom certificates, running on WSL). I suspect there might be a networking issue blocking the request, but I have no way of investigating further due to the lack of detailed output or logs. I tried TLDR_ALLOW_INSECURE=1

Suggestion:
Add a --verbose flag to show detailed output of what tldr is doing.
Alternatively, add debug flags to provide more granular logging.
If there is already a debug flag, it would be helpful to mention in in README.

The issue is likely on my side, but without detailed logs, I cannot progress.
Thank you for your assistance!

Start at the tldr command entry point and trace the page-fetch and cache-update flow shown in the report. Determine how verbose or debug output should expose networking failures, then reproduce tldr tar with the reported setup and document or test the resulting diagnostics.