docs/reference/repl.rst: Add information about new raw-paste mode.
docs/reference/repl.rst: Add information about new raw-paste mode.

Signed-off-by: Damien George <99e6b749acbfbe2a596df99e91d24d6e1fdbee00@micropython.org>

pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython,pfalcon/micropython