skpkg: modify README.rst to include updated install instructions

Signed-off-by: Dasun Abeykoon <Dasun20202020@hotmail.com>

Author: dabeycorn

README.rst

@@ -26,42 +26,53 @@
 
 Distance Printer, calculate the inter atomic distances. Part of xPDFsuite
 
-For more information about the diffpy.distanceprinter library, please consult our `online documentation <https://diffpy.github.io/diffpy.distanceprinter>`_.
-
 Citation
 --------
 
 If you use diffpy.distanceprinter in a scientific publication, we would like you to cite this package as
 
-        diffpy.distanceprinter Package, https://github.com/diffpy/diffpy.distanceprinter
+        Xiaohao Yang, Pavol Juhas, Christopher L. Farrow and Simon J. L. Billinge, xPDFsuite: an end-to-end
+        software solution for high throughput pair distribution function transformation, visualization and
+        analysis, arXiv 1402.3163 (2014)
 
 Installation
 ------------
+``diffpy.distanceprinter`` is normally installed as part of the ``xpdfsuite`` software, so please refer to the
+installation instructions detailed in the ``README.rst`` file of ``xpdfsuite`` `here <https://github.com/diffpy/diffpy.xpdfsuite/blob/main/README.rst>`_.
 
-The preferred method is to use `Miniconda Python
-<https://docs.conda.io/projects/miniconda/en/latest/miniconda-install.html>`_
-and install from the "conda-forge" channel of Conda packages.
+Independent Installation
+------------------------
+You can also install ``diffpy.distanceprinter`` independently for yourself.
+
+Assuming you have a wheel file in the current working directory, in an active conda environment please type
+
+    pip install ./diffpy.distanceprinter-VERSION.whl
 
-To add "conda-forge" to the conda channels, run the following in a terminal. ::
+where you replace VERSION with the actual version you have so the command matches the filename of the
+wheel file you have.
 
-        conda config --add channels conda-forge
+The commands to create and activate the conda environment with name "conf-env" is
 
-We want to install our packages in a suitable conda environment.
-The following creates and activates a new environment named ``diffpy.distanceprinter_env`` ::
+    conda create -n conf-env python=3.13
+    conda activate conf-env
 
-        conda create -n diffpy.distanceprinter_env diffpy.distanceprinter
-        conda activate diffpy.distanceprinter_env
+If you don't have conda installed, we recomment you install `miniconda
+<https://docs.conda.io/projects/miniconda/en/latest/miniconda-install.html>`_
+To install this software from a Python wheel distribution format execute
 
-The output should print the latest version displayed on the badges above.
+    pip install ./diffpy.distanceprinter-VERSION.whl
 
-If the above does not work, you can use ``pip`` to download and install the latest release from
-`Python Package Index <https://pypi.python.org>`_.
-To install using ``pip`` into your ``diffpy.distanceprinter_env`` environment, type ::
+If you are a developer, you can also install this package from sources. First, obtain the source archive
+from `GitHub <https://github.com/diffpy/diffpy.distanceprinter/>`_.
+Install the packages in ``./requirements/conda.txt`` and ``./requirements/tests.txt``
+using the `--file`` command:
 
-        pip install diffpy.distanceprinter
+    conda activate conf-env
+    conda install --file ./requirements/conda.txt
+    conda install --file ./requirements/tests.txt
+    pip install -e .    # assuming you are in the top level directory of the package
 
-If you prefer to install from sources, after installing the dependencies, obtain the source archive from
-`GitHub <https://github.com/diffpy/diffpy.distanceprinter/>`_. Once installed, ``cd`` into your ``diffpy.distanceprinter`` directory
+After installing the dependencies, ``cd`` into your ``diffpy.distanceprinter`` directory
 and run the following ::
 
         pip install .
@@ -79,38 +90,6 @@ To view the basic usage and available commands, type ::
 
         diffpy.distanceprinter -h
 
-Getting Started
----------------
-
-You may consult our `online documentation <https://diffpy.github.io/diffpy.distanceprinter>`_ for tutorials and API references.
-
-Support and Contribute
-----------------------
-
-If you see a bug or want to request a feature, please `report it as an issue <https://github.com/diffpy/diffpy.distanceprinter/issues>`_ and/or `submit a fix as a PR <https://github.com/diffpy/diffpy.distanceprinter/pulls>`_.
-
-Feel free to fork the project and contribute. To install diffpy.distanceprinter
-in a development mode, with its sources being directly used by Python
-rather than copied to a package directory, use the following in the root
-directory ::
-
-        pip install -e .
-
-To ensure code quality and to prevent accidental commits into the default branch, please set up the use of our pre-commit
-hooks.
-
-1. Install pre-commit in your working environment by running ``conda install pre-commit``.
-
-2. Initialize pre-commit (one time only) ``pre-commit install``.
-
-Thereafter your code will be linted by black and isort and checked against flake8 before you can commit.
-If it fails by black or isort, just rerun and it should pass (black and isort will modify the files so should
-pass after they are modified). If the flake8 test fails please see the error messages and fix them manually before
-trying to commit again.
-
-Improvements and fixes are always appreciated.
-
-Before contributing, please read our `Code of Conduct <https://github.com/diffpy/diffpy.distanceprinter/blob/main/CODE-OF-CONDUCT.rst>`_.
 
 Contact
 -------