Update cheatsheets

tldr/linux/virt-what

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# virt-what
+
+> Shell script that detects if you are running in a virtual machine.
+> Outputs a specific code for a virtual machine if detected.
+> More information: <https://manned.org/virt-what>.
+
+- Detect if you are running in a virtual machine:
+
+`virt-what`
+
+- Log output of `virt-what` into a file:
+
+`virt-what > {{path/to/file}}`
+
+- Display version:
+
+`virt-what --version`