Add --version flag to the documentation

Author: XingerTang

docs/source/changelog.rst

@@ -15,6 +15,9 @@ New features
 * Allow a founding individual to have two different metafounders, e.g., one for the paternal lineage and one for the maternal lineage
   (:pr:`222`, :user:`RosCraddock`, :user:`gregorgorjanc`, :user:`XingerTang`).
 
+* Add a version option to the command line interface
+  (:pr:`237`, :user:`XingerTang`).
+
 Maintenance
 -----------
 
@@ -34,6 +37,11 @@ Maintenance
 * Updated the documentation to clarify inputs, outputs, and parameters
   (:pr:`219`, :user:`gregorgorjanc`).
 
+* Add collaboration guidelines to the documentation
+  (:pr:`224`, :user:`XingerTang`, :user:`RosCraddock`, :user:`AprilYuZhang`, :user:`gregorgorjanc`).
+
+* Updated the documentation to add more techincal instructions for developers and contributors
+  (:pr:`237`, :user:`XingerTang`).
 
 [1.3.0] - 2026-02-05
 ====================

docs/source/usage.rst

@@ -12,7 +12,11 @@ Program options
 
 |Software| accepts several command-line options to control the program's behaviour.
 To view a list of all supported options, run |Software| like this:
-``AlphaPeel`` or ``AlphaPeel -h``.
+``AlphaPeel``, ``AlphaPeel -h`` or ``AlphaPeel --help``.
+
+User can check the version of the program with ``AlphaPeel --version``. 
+Remember to use the correct version of the documentation for the version of the program you are using.
+For example, the link to the documentation for version ``1.3.0`` is https://alphapeel.readthedocs.io/en/1.3.0/index.html.
 
 .. _input_options: