mutt: add page (#1258)

pages/common/mutt.md

@@ -0,0 +1,23 @@
+# mutt
+
+> Command-line email client.
+
+- Open the specified mailbox:
+
+`mutt -f {{mailbox}}`
+
+- Send an email and specify a subject and a cc recipient:
+
+`mutt -s {{subject}} -c {{cc@example.com}} {{recipient@example.com}}`
+
+- Send an email with files attached:
+
+`mutt -a {{file1}} {{file2}} -- {{recipient@example.com}}`
+
+- Specify a file to include as the message body:
+
+`mutt -i {{file}} {{recipient@example.com}}`
+
+- Specify a draft file containing the header and the body of the message:
+
+`mutt -H {{file}} {{recipient@example.com}}`