read.me file build instructions should be updated to match the latest version of sonic

[mgheorghe]

when installing required deps

docker run --network host -it debian:bookworm bash

apt-get install make libtool m4 autoconf dh-exec debhelper cmake pkg-config \
                     libhiredis-dev libnl-3-dev libnl-genl-3-dev libnl-route-3-dev \
                     libnl-nf-3-dev swig3.0 libpython2.7-dev libpython3-dev \
                     libgtest-dev libgmock-dev libboost-dev

we get

E: Unable to locate package swig3.0
E: Couldn't find any package by glob 'swig3.0'
E: Couldn't find any package by regex 'swig3.0'
E: Unable to locate package libpython2.7-dev
E: Couldn't find any package by glob 'libpython2.7-dev'
E: Couldn't find any package by regex 'libpython2.7-dev'

other things in tha read.me may need update