Balena: add page (#3422)

pages/common/balena.md

@@ -0,0 +1,24 @@
+# balena
+
+> Interact with the balenaCloud, openBalena and the balena API from the command line.
+> More information: <https://www.balena.io/docs/reference/cli/>.
+
+- Login to the balenaCloud account:
+
+`balena login`
+
+- Create a balenaCloud or openBalena application:
+
+`balena app create {{app_name}}`
+
+- List all balenaCloud or openBalena applications within the account:
+
+`balena apps`
+
+- List all devices associated with the balenaCloud or openBalena account:
+
+`balena devices`
+
+- Flash a balenaOS image to a local drive:
+
+`balena local flash {{path/to/balenaos.img}} --drive {{drive_location}}`