Update the README.

CHANGELOG.org

@@ -49,3 +49,5 @@
    Add the CI/CD configuration.
 ** 1.2.3 <2023-07-16>
    Fix the command that was "ans", but it must be "asn".
+** 1.2.4 <2023-07-16>
+   Update the README.

README.rst

@@ -4,6 +4,27 @@ Anitube Simple Notification
 Anitube Simple Notification is a application made for getting
 notification when a content is updated on the web-site (anitube.in.ua).
 
+Install
+=======
+
+Ensure that python and pip are installed:
+
+.. code:: shell
+
+   python --version
+   python -m pip -V
+   # or
+   python3 --version
+   python3 -m pip -V
+
+Install the package:
+
+.. code:: shell
+
+   pip install anitube-simple-notification
+   # or
+   pip3 install anitube-simple-notification
+
 Usage
 =====
 
@@ -30,8 +51,8 @@ Run the program by one of the commands:
 
 .. code:: shell
 
-   python3 main.py
+   anitube-simple-notification
-   python main.py
+   asn
 
 Author
 ======

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "anitube-simple-notification"
-version = "1.2.2"
+version = "1.2.4"
 authors = [
   { name="Kostiantyn Klochko", email="kklochko@protonmail.com" },
 ]