Fixed wheel_distance. Added readme

README.md

+# Description
+This package provide some ADC participant oriented launch files and config files to start up the model car and run some advanced functionalities. Check the main [model car documentation](https://gitlab.iri.upc.edu/mobile_robotics/adc/platforms/model_car/iri_model_car_how_to) for further information. 
+
+# Dependencies
+This node has the following dependencies:
+* none
+
+# Install
+
+Move to the active workspace:
+```bash
+roscd && cd ../src
+```
+Clone the repository: 
+```bash
+git clone <url>
+```
+Install ROS dependencies:
+```
+roscd
+cd ..
+rosdep install -i -r --from-paths src
+```
+Compile the workspace:
+```
+catkin_make
+```
+
+# How to use it
+
+This package provide differents launch files that can be tested.
+

config/adc_common/adc_odometry_config.yaml

@@ -3,7 +3,7 @@ odom_frame: "adc_car/odom"
 robot_frame: "adc_car/base_footprint"
 encoder_ticks: 30
 wheel_diameter: 0.100
-wheel_distance: 0.216
+wheel_distance: 0.261
 axel_distance: 0.3662
 filter_coeff: 0.3
 speed_deadband: 0.1