[ENH] add subtitle in installation

README.md

@@ -32,32 +32,38 @@ To learn how to use it, please refer to - [document](https://www.lamda.nju.edu.c
 
 ## Installation
 
+### Install from PyPI
+
 The easiest way to install ABL-Package is using ``pip``:
 ```bash
 # (TODO)
-$ pip install abl
+pip install abl
 ```
 
 For testing purposes, you can install it using:
 
 ```bash
-$ pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
+pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
 ```
 
-Alternatively, to install by source code, sequentially run following commands in your terminal/command line.
+### Install from Source
+
+Alternatively, to install from source code, sequentially run following commands in your terminal/command line.
 
 ```bash
-$ git clone https://github.com/AbductiveLearning/ABL-Package.git
-$ cd ABL-Package
-$ pip install -v -e .
+git clone https://github.com/AbductiveLearning/ABL-Package.git
+cd ABL-Package
+pip install -v -e .
 ```
 
-(Optional) If the use of a [Prolog-based knowledge base](https://www.lamda.nju.edu.cn/abl_test/docs/build/html/Intro/Reasoning.html#prolog) is necessary, the installation of [Swi-Prolog](https://www.swi-prolog.org/) is also required:
+### (Optional) Install Swi-Prolog
+
+If the use of a [Prolog-based knowledge base](https://www.lamda.nju.edu.cn/abl_test/docs/build/html/Intro/Reasoning.html#prolog) is necessary, please also install [Swi-Prolog](https://www.swi-prolog.org/):
 
 For Linux users:
 
 ```bash
-$ sudo apt-get install swi-prolog
+sudo apt-get install swi-prolog
 ```
 
 For Windows and Mac users, please refer to the [Swi-Prolog Install Guide](https://github.com/yuce/pyswip/blob/master/INSTALL.md).

docs/Overview/Installation.rst

@@ -1,34 +1,43 @@
 Installation
 ==================
 
+Install from PyPI
+^^^^^^^^^^^^^^^^^
+
 The easiest way to install ABL-Package is using ``pip``:
 
 .. code:: console
 
     # (TODO)
-    $ pip install abl
+    pip install abl
 
 For testing purposes, you can install it using:
 
 .. code:: console
 
-    $ pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
+    pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
+
+Install from Source
+^^^^^^^^^^^^^^^^^^^
 
-Alternatively, to install by source code, 
+Alternatively, to install from source code, 
 sequentially run following commands in your terminal/command line.
 
 .. code:: console
 
-    $ git clone https://github.com/AbductiveLearning/ABL-Package.git
-    $ cd ABL-Package
-    $ pip install -v -e .
+    git clone https://github.com/AbductiveLearning/ABL-Package.git
+    cd ABL-Package
+    pip install -v -e .
+
+(Optional) Install Swi-Prolog
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-(Optional) If the use of a :ref:`Prolog-based knowledge base <prolog>` is necessary, the installation of `Swi-Prolog <https://www.swi-prolog.org/>`_ is also required:
+If the use of a :ref:`Prolog-based knowledge base <prolog>` is necessary, the installation of `Swi-Prolog <https://www.swi-prolog.org/>`_ is also required:
 
 For Linux users:
 
 .. code:: console
 
-    $ sudo apt-get install swi-prolog
+    sudo apt-get install swi-prolog
 
 For Windows and Mac users, please refer to the `Swi-Prolog Install Guide <https://github.com/yuce/pyswip/blob/master/INSTALL.md>`_.

docs/README.rst

@@ -21,35 +21,44 @@ which leverage the power of both data and knowledge.
 Installation
 ------------
 
+Install from PyPI
+^^^^^^^^^^^^^^^^^
+
 The easiest way to install ABL-Package is using ``pip``:
 
 .. code:: console
 
     # (TODO)
-    $ pip install abl
+    pip install abl
 
 For testing purposes, you can install it using:
 
 .. code:: console
 
-    $ pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
+    pip install -i https://test.pypi.org/simple/ --extra-index-url https://mirrors.nju.edu.cn/pypi/web/simple/ abl
+
+Install from Source
+^^^^^^^^^^^^^^^^^^^
 
-Alternatively, to install by source code, 
+Alternatively, to install from source code, 
 sequentially run following commands in your terminal/command line.
 
 .. code:: console
 
-    $ git clone https://github.com/AbductiveLearning/ABL-Package.git
-    $ cd ABL-Package
-    $ pip install -v -e .
+    git clone https://github.com/AbductiveLearning/ABL-Package.git
+    cd ABL-Package
+    pip install -v -e .
+
+(Optional) Install Swi-Prolog
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-(Optional) If the use of a :ref:`Prolog-based knowledge base <prolog>` is necessary, the installation of `Swi-Prolog <https://www.swi-prolog.org/>`_ is also required:
+If the use of a :ref:`Prolog-based knowledge base <prolog>` is necessary, the installation of `Swi-Prolog <https://www.swi-prolog.org/>`_ is also required:
 
 For Linux users:
 
 .. code:: console
 
-    $ sudo apt-get install swi-prolog
+    sudo apt-get install swi-prolog
 
 For Windows and Mac users, please refer to the `Swi-Prolog Install Guide <https://github.com/yuce/pyswip/blob/master/INSTALL.md>`_.