Update cheatsheets

gladtex

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# gladtex
+
+> A LaTeX formula preprocessor for HTML files.
+> It converts LaTeX formulas to images.
+> More information: <https://manned.org/gladtex.1>.
+
+- Convert to HTML:
+
+`gladtex {{path/to/input.htex}}`
+
+- Save the converted file to a specific location:
+
+`gladtex {{path/to/input.htex}} -o {{path/to/output.html}}`
+
+- Save the generated images to a specific [d]irectory:
+
+`gladtex {{path/to/input.htex}} -d {{path/to/image_output_directory}}`
+
+- Set image [r]esolution (in dpi, default is 100):
+
+`gladtex {{path/to/input.htex}} -r {{resolution}}`
+
+- [k]eep LaTeX files after conversion:
+
+`gladtex {{path/to/input.htex}} -k`
+
+- Set [b]ackground and [f]oreground color of the images:
+
+`gladtex {{path/to/input.htex}} -b {{background_color}} -f {{foreground_color}}`
+
+- Convert Markdown to HTML using `pandoc` and `gladtex`:
+
+`pandoc -s -t html --gladtex {{path/to/input.md}} | gladtex -o {{path/to/output.html}}`