docs: install with pip doc

Author: 0hsn

docs/setup.md

@@ -2,11 +2,21 @@
 title: Setup toolbox
 ---
 
-### Install _CHKware_ toolset with Pipx
-
 This section describe the installation process for [_CHKware_](https://github.com/chkware/cli). The currently supported python version is **_Python 3.11.x_**. You need to have this version of python in your OS to continue.
 
-The best way to setup any python app is manage it via [pipx](https://pypa.github.io/pipx/). Pipx is a standard PyPi python application manager.
+### Install _CHKware_ toolset with Pip
+
+If you have _Python 3.11.x_ installed, then you already have `pip` installed by default. So, just run following command.
+
+```bash
+pip install -U chk
+```
+
+To upgrade to the next released version, run the same command.
+
+### Install _CHKware_ toolset with Pipx
+
+The best way to setup any python app is manage it via [pipx](https://pypa.github.io/pipx/). Pipx is a standard PyPi python application manager. Pipx creates separate virtual environment for given installable package. So, your system have less side effect.
 
 First, [Install pipx](https://pypa.github.io/pipx/installation/). Then run