Update cheatsheets

rich

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rich
+
+> A toolbox for fancy output in the terminal.
+> More information: <https://github.com/Textualize/rich-cli>.
+
+- Display a file with syntax highlighting:
+
+`rich {{path/to/file.py}}`
+
+- Add line numbers, and indentation guides:
+
+`rich {{path/to/file.py}} --line-number --guides`
+
+- Apply a theme:
+
+`rich {{path/to/file.py}} --theme {{monokai}}`
+
+- Display a file in an interactive pager:
+
+`rich {{path/to/file.py}} --pager`
+
+- Display contents from a URL:
+
+`rich {{https://raw.githubusercontent.com/Textualize/rich-cli/main/README.md}} --markdown --pager`
+
+- Export a file as HTML:
+
+`rich {{path/to/file.md}} --export-html {{path/to/file.html}}`
+
+- Display text with formatting tags, custom alignment, and line width:
+
+`rich --print {{"Hello [green on black]Stylized[/green on black] [bold]World[/bold]"}} --{{left|center|right}} --width {{10}}`