* update copyright symbols to unicode
* clean up version screen/copyright notice
* small change to make commands more similar
* update imports to appease isort
* fix test
* update one more file merged since PR was open
* First draft of command line reference, mostly pulled from help screen
* Add first draft of config file reference, mostly pulled from advanced.md
* Clean up config file doc for readability
* Add --config-file and remove examples from CLI reference
* Add warning about time zone in timeformat
* More small changes, and adding template config keyword
* Cleaning up and re-ordering config file reference
* Clean up reference and anything else from advanced documentation that can live elsewhere and linking to config file reference wherever config file is mentioned
* Fix syntax highlighting in command line reference, clean up content a bit, include --diagnostic
* Mention version config key
* Apply minor changes suggested in PR review
* Rename "recipes" to "Tips and Tricks", pull "External Editors" out of it into its own page, and redirect old recipes link to tips-and-tricks
* Revert broken mkdocs-redirects usage from last commit
