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

tldr/qrencode

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# qrencode
+
+> QR Code generator. Supports PNG and EPS.
+> More information: <https://fukuchi.org/works/qrencode>.
+
+- Convert a string to a QR code and save to an output file:
+
+`qrencode -o {{path/to/output_file.png}} {{string}}`
+
+- Convert an input file to a QR code and save to an output file:
+
+`qrencode -o {{path/to/output_file.png}} -r {{path/to/input_file}}`
+
+- Convert a string to a QR code and print it in terminal:
+
+`qrencode -t ansiutf8 {{string}}`
+
+- Convert input from pipe to a QR code and print it in terminal:
+
+`echo {{string}} | qrencode -t ansiutf8`