update docs

docs/getting_started.rst

@@ -0,0 +1,36 @@
+Getting Started
+===============
+
+.. _getting_started:
+
+
+
+Instructions for GARNET development
+-----------------------------------
+
+Conda Configuration
+```````````````````
+Create and activate conda environment for ``GARNET``.
+
+.. code-block:: sh
+
+    conda env create --file environment.yml
+    # or
+    mamba env create --file environment.yml
+
+    conda activate garnet
+
+Install ``GARNET`` (in `editable mode <https://pip.pypa.io/en/stable/cli/pip_install/#cmdoption-e>`_) and start application
+
+.. code-block:: sh
+
+    python -m pip install -e .
+
+    garnet
+
+If it has been a while, once can update using
+
+.. code-block:: sh
+
+    conda activate garnet
+    conda env update --file environment.yml --prune

pyproject.toml

@@ -9,6 +9,9 @@ license = { text = "GPL-3.0" }
 [project.urls]
 homepage = "https://github.com/neutrons/garnet/"
 
+[project.scripts]
+garnet = "garnet.__main__:main"
+
 [build-system]
 requires = ["setuptools", "wheel", "toml", "versioningit"]
 build-backend = "setuptools.build_meta"