ranger: add page (#2985)

pages/common/ranger.md

@@ -0,0 +1,24 @@
+# ranger
+
+> Console file manager with VI key bindings.
+> Homepage: <https://github.com/ranger/ranger>.
+
+- Launch ranger:
+
+`ranger`
+
+- Show only directories:
+
+`ranger --show-only-dirs`
+
+- Change the configuration directory:
+
+`ranger --confdir={{path/to/directory}}`
+
+- Change the data directory:
+
+`ranger --datadir={{path/to/directory}}`
+
+- Print CPU usage statistics on exit:
+
+`ranger --profile`