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

tldr/windows/set

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, windows]
+source: https://github.com/tldr-pages/tldr.git
+---
+# set
+
+> Display or set environment variables for the current instance of CMD.
+> More information: <https://learn.microsoft.com/windows-server/administration/windows-commands/set>.
+
+- List all current environment variables:
+
+`set`
+
+- Set an environment variable to a specific value:
+
+`set {{name}}={{value}}`
+
+- List environment variables starting with the specified string:
+
+`set {{name}}`
+
+- Prompt the user for a value for the specified variable:
+
+`set /p {{name}}={{prompt_string}}`