updating readme related to ROS1/2 bridge

[alesolano]

No description provided.

[alesolano]

don't merge yet. may be more readme updates to come

[LanderU]

Are we ready to merge it?

[alesolano]

wait a sec

[alesolano]

not very readme but

[YueErro]

Can we put it back? python3 works for me.

[alesolano]

I prefer using python2 since it works fine from the beginning without needing to install anything additional.

If we want to change it to python3 (I don't see any advantages) we would need to add the next lines in the dependencies as mentioned here https://github.com/erlerobot/management/issues/1844#issuecomment-488585373

sudo apt install python3-pip # if not done previously for HRIM
pip3 install catkin_pkg rospkg pyyaml

Any opinions on this @rkojcev @nzlz @ahcorde ?

[rkojcev]

Lets stick to python2 for ROS 1 related matters. I do not see the advantage of having python3 in ROS 1 and installing additionally things that potentially break or remove other packages.

We should not use python3 with ROS1

[alesolano]

nothing more to add to this PR from my side