Update docs for scikit-build

Author: chudur-budur

docs/source/getting_started.rst

@@ -37,7 +37,7 @@ Building from source
 --------------------
 
 ``numba-dpex`` can be built from source using either ``conda-build`` or
-``setuptools``.
+``scikit-build``.
 
 Steps to build using ``conda-build``:
 
@@ -70,7 +70,7 @@ first step.
 
     # Create a conda environment that hass needed dependencies installed
     conda create -n numba-dpex-env                                             \
-        dpctl dpnp numba dpcpp-llvm-spirv llvmdev pytest           \
+        scikit-build cmake dpctl dpnp numba dpcpp-llvm-spirv llvmdev pytest    \
         -c intel -c conda-forge
     # Activate the environment
     conda activate numba-dpex-env

environment/docs.yml

@@ -11,6 +11,8 @@ dependencies:
   - gxx_linux-64
   - dpcpp_linux-64
   - numba=0.57
+  - scikit-build>=0.15*
+  - cmake>=3.26*
   - dpctl
   - dpnp
   - dpcpp-llvm-spirv