diskonaut: add page (#5753)

pages/common/diskonaut.md

@@ -0,0 +1,20 @@
+# diskonaut
+
+> Terminal disk space navigator, written in Rust.
+> More information: <https://github.com/imsnif/diskonaut>.
+
+- Start diskonaut in the current directory:
+
+`diskonaut`
+
+- Start diskonaut in a specific directory:
+
+`diskonaut {{path/to/directory}}`
+
+- Show file sizes rather than their block usage on the disk:
+
+`diskonaut --apparent-size {{path/to/directory}}`
+
+- Disable deletion confirmation:
+
+`diskonaut --disable-delete-confirmation`