Documentation update : Improve Readme.md for easy Installation and Setup for rqt_chat

[rajRishi22]

Hi PAL Robotics team ,

The current README file does not provide detailed instructions on how to install and set up the rqt_chat project.I was facing issues while trying to set up this project. To help users get started with this project more easily, I suggest adding the following information to the documentation:

Introduction
This section will contain the information about rqt_chat , its uses , images.
Prerequisites to install
List of required software and versions (e.g., ROS2 Humble, Python version).
Installation Steps

1. Detailed steps to clone the repository.
2. Instructions to install dependencies, including specific commands for ROS2 Humble.
   Build Instructions
3. Steps to build the project using colcon build.
   Instructions to launch rqt and load the rqt_chat plugin.
   Since ros4hri is not available as a pre-built package for ROS2 Humble, provide instructions to build it from source.

Please let me know , if i should go on to make a detailed Readme file for this project or if there are any other changes you want me to add in the new Readme file.
@saikishor @jordi-pages
@severin-lemaignan @lucamarchionni
Regards,
Rishi Raj

[severin-lemaignan]

hi! thanks for looking into that!
The README can certainly be improved, I agree. If you want to submit an initial PR, that would be great.

Otherwise, we'll try to give it some love in the coming weeks.

[rajRishi22]

Hi! @severin-lemaignan thanks for immediate response . I will open a PR soon for this issue.

[rajRishi22]

Hi @severin-lemaignan , I was trying to setup this project and got this error, after running rqt command , then moving to plugins -> Human robot Interactions -> chat interface :
can you please help me to figure out the possible issue ? How can i use the tts_msgs module, if it is required ?