Add a "reporting issues" section

[d13]

This should cover:

• where to report issues (https://github.com/gitkraken/vscode-gitlens/issues)
• search for an existing issue first
• create a new issue (https://github.com/gitkraken/vscode-gitlens/issues/new/choose)
• how to enable debug logging
• how to leverage the new export logs feature (https://code.visualstudio.com/updates/v1_97#_export-and-import-logs)

Export and import logs
You can now export and import logs using the actions in the overflow menu of the Output view. This feature enhances collaboration and log management by making it easy to share and review logs.

Select the corresponding Export Logs or Import Log action in the overflow menu of the Output panel to export or import logs.

[d13]

Originally created in GitLens: gitkraken/vscode-gitlens#4026