Move pages under tldr, lint run.sh, update docs

tldr/texliveonfly

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# texliveonfly
+
+> Downloads missing TeX Live packages while compiling `.tex` files.
+> More information: <https://ctan.org/pkg/texliveonfly>.
+
+- Download missing packages while compiling:
+
+`texliveonfly {{source.tex}}`
+
+- Use a specific compiler (defaults to `pdflatex`):
+
+`texliveonfly --compiler={{compiler}} {{source.tex}}`
+
+- Use a custom TeX Live `bin` folder:
+
+`texliveonfly --texlive_bin={{path/to/texlive_bin}} {{source.tex}}`