Update 01 - ROS and Sensor Fusion Tutorial.md

[ricber]

Swapped "odom -> base_link" and "map -> odom" paragraph titles

[methylDragon]

Hiya! Thanks for spotting the mistake, though the issue is the description and not the titles (that, and the outer titles needed to be fixed as well, haha...)

I'll close and merge in the pull request and make further edits.

CH3EERS!

[ricber]

Sorry, just a last little thing, in Fusing Sensors for the /map frame (map -> odom) shouldn't be

"All continuous sensor data and algorithm outputs that are global pose estimates"

instead of

"All continuous sensor data and algorithm outputs that aren't global pose estimate"

[methylDragon]

Oh! Yeah, actually that's a very confusing point, I was surprised about it too, but if you check the diagram from Clearpath's lecture (https://github.com/methylDragon/ros-sensor-fusion-tutorial/blob/master/assets/1_5.png), they actually fuse non-global data for the global pose estimation Kalman filter!

Thanks for pointing out to me that this is a point of confusion, I'll add in a note to be clearer on that.

CH3EERS!