hostess: add page (#2541)

pages/common/hostess.md

@@ -0,0 +1,19 @@
+# hostess
+
+> An idempotent command-line utility for managing your /etc/hosts file.
+
+- List domains, target ips and on/off status:
+
+`hostess list`
+
+- Add a domain pointing to your machine to your hosts file:
+
+`hostess add {{local.example.com}} {{127.0.0.1}}`
+
+- Remove a domain from your hosts file:
+
+`hostess del {{local.example.com}}`
+
+- Disable a domain (but don't remove it completely):
+
+`hostess off {{local.example.com}}`