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

tldr/read

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# read
+
+> Shell builtin for retrieving data from `stdin`.
+> More information: <https://manned.org/read.1p>.
+
+- Store data that you type from the keyboard:
+
+`read {{variable}}`
+
+- Do not let backslash (\) act as an escape character:
+
+`read -r {{variable}}`
+
+- Read `stdin` and perform an action on every line:
+
+`while read line; do echo "$line"; done`