Update cheatsheets

catimg

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# catimg
+
+> Image printing in the terminal.
+> See also: `pixterm`, `chafa`.
+> More information: <https://github.com/posva/catimg>.
+
+- Print a JPEG, PNG, or GIF to the terminal:
+
+`catimg {{path/to/file}}`
+
+- Double the [r]esolution of an image:
+
+`catimg -r 2 {{path/to/file}}`
+
+- Disable 24-bit color for better [t]erminal support:
+
+`catimg -t {{path/to/file}}`
+
+- Specify a custom [w]idth or [H]eight:
+
+`catimg {{-w|-H}} {{40}} {{path/to/file}}`