Improve beginner experience

[Hennzau]

Objective

Hi! This PR proposes several changes to the installation process, README.md, and examples to make it easier for beginners to get started with Dora.

Installation

• The install.sh script for Linux and macOS now automatically detects the user's terminal and asks if they want to add .dora/bin to their PATH automatically.

• A new install.ps1 script does the same for Windows. The following command (note: it doesn't work yet because this PR hasn't been merged into the main branch, so the path needs to be adapted) works regardless of whether the user is in CMD, bash, or PowerShell (this helps avoid potential errors):

powershell -c "irm https://raw.githubusercontent.com/dora-rs/dora/main/install.ps1 | iex"

=> I believe having a standalone installation script will help convince more beginners to use Dora (especially among students/teachers). Using crates.io requires several steps, particularly on Windows: installing Rustup, simultaneously installing MSVC, and then installing dora-cli. For many who are not Rust developers, this can involve too many steps (especially regarding MSVC, since the Visual Installer interface is not very intuitive, and beginners might not know what to install).

README.md

I was inspired by existing GitHub projects to propose a clearer README.md that quickly highlights the important steps of the project: Highlights, Installation, and Documentation/Getting Started.

Examples

I haven't worked on this part yet, but I think it's necessary to rework our examples folder. I find it easy to get lost in it as it currently feels more like a tests directory than examples meant to guide a user.

What would be helpful is:

• Creating more explicit examples like rust-talker-listener, python-video-capture, rust-speech-to-text, python-ros2-bridge, multiple-machine-talker-listener, etc., instead of just c++-dataflow, python-dataflow, etc.

• Automatically integrating all our examples into the CI.

• For the python examples, to facilitate execution with run.rs scripts, it might be worth considering using uv (https://github.com/astral-sh/uv), as they offer a crate that allows managing an entire python installation, venv, dependencies from Rust. This might be simpler than having to find a Python binary, install everything, etc.

[haixuanTao]

That looks awesome!!! Thanks!

Really like the new performance review diagram :)

I think this can already be merged :)

[Hennzau]

Cool! Let met update the links and I will merge it!

[haixuanTao]

Adding a links for the benchmark as it is a common asked question.