Update build.md

Author: eliericha

doc/devel/build.md

@@ -1,25 +1,24 @@
 # Building Ada Language Server from sources
 
-1. Install Alire, Python 3, NodeJS. Add them to `PATH`.
+1. Install the following tools and add them to the `PATH` environment variable:
+   - Alire >= 2.0.2
+   - Python >= 3.11
+   - NodeJS >= 20.18.3
 
-2. Disable dependency sharing in Alire
+1. Disable dependency sharing in Alire
 
        alr settings --global --set dependencies.shared false
 
-3. Clone repository
+1. Clone repository
 
        git clone https://github.com/AdaCore/ada_language_server.git
        cd ada_language_server
 
-4. If you know dependency commits numbers then create `deps.txt` file
+1. If you know dependency commits numbers then create `deps.txt` file
    with lines `<repo_name>=commit`. Otherwise checkout `edge` branch.
 
-5. Build scripts installs Python modules. So it's better to activate
-   `venv` for Python:
+1. Use `alr toolchain --select` to install the latest available versions of `gnat` and `gprbuild`.
 
-       python -m venv venv
-       source venv/bin/activate
-
-5. Run `build_als.sh` script
+1. Run `build_als.sh` script
 
        ./scripts/build_als.sh