picocom: add page (#12081)

Co-authored-by: Tristan Andrus <tristan.andrus@vivint.com>

pages/common/picocom.md

@@ -0,0 +1,12 @@
+# picocom
+
+> Minimal program to emulate serial consoles.
+> More information: <https://manned.org/picocom>.
+
+- Connect to a serial console with a specified baud rate:
+
+`picocom {{/dev/ttyXYZ}} --baud {{baud_rate}}`
+
+- Map special characters (e.g. `LF` to `CRLF`):
+
+`picocom {{/dev/ttyXYZ}} --imap {{lfcrlf}}`