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

tldr/windows/reg-copy

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, windows]
+source: https://github.com/tldr-pages/tldr.git
+---
+# reg copy
+
+> Copy keys and their values in the registry.
+> More information: <https://learn.microsoft.com/windows-server/administration/windows-commands/reg-copy>.
+
+- Copy a registry key to a new registry location:
+
+`reg copy {{old_key_name}} {{new_key_name}}`
+
+- Copy a registry key recursively to a new registry location:
+
+`reg copy {{old_key_name}} {{new_key_name}} /s`
+
+- Forcefully copy a registry key without a prompt:
+
+`reg copy {{old_key_name}} {{new_key_name}} /f`