Fix tutorial install windows (#470)

Signed-off-by: Van Malleghem Antoine <[email protected]>

Author: avanmalleghem

tutorials/install.md

@@ -44,7 +44,7 @@ which version you need.
 
 #### Install Prerequisites
 
-First, follow the [gz-cmake](https://github.com/gazebosim/gz-cmake) tutorial for installing Conda, Visual Studio, CMake, etc., prerequisites, and creating a Conda environment.
+First, follow the [source installation](https://gazebosim.org/docs/ionic/install_windows_src/) tutorial until step 5 included for installing Conda, Visual Studio, CMake, etc., prerequisites, and creating a Conda environment.
 
 Navigate to `condabin` if necessary to use the `conda` command (i.e., if Conda is not in your `PATH` environment variable. You can find the location of `condabin` in Anaconda Prompt, `where conda`).
 
@@ -161,6 +161,8 @@ This assumes you have created and activated a Conda environment while [installin
   cd gz-sensors
   mkdir build
   cd build
+  cmake .. -DBUILD_TESTING=OFF  # Optionally, -DCMAKE_INSTALL_PREFIX=path\to\install
+  cmake --build . --config Release
   ```
 
 4. Optionally, install. You will likely need to run a terminal with admin privileges for this call to succeed.