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

tldr/vboxmanage-clonevm

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# vboxmanage-clonevm
+
+> Create a clone of an existing virtual machine (VM).
+> More information: <https://www.virtualbox.org/manual/ch08.html#vboxmanage-clonevm>.
+
+- Clone the specified VM:
+
+`VBoxManage clonevm {{vm_name}}`
+
+- Specify a new name for the new VM:
+
+`VBoxManage clonevm {{vm_name}} --name {{new_vm_name}}`
+
+- Indicate the folder where the new VM configuration is saved:
+
+`VBoxManage clonevm {{vm_name}} --basefolder {{path/to/directory}}`
+
+- Register the cloned VM in VirtualBox:
+
+`VBoxManage clonevm {{vm_name}} --register`