Added PyPI installation documentation.

Author: xvitaly

docs/README.md

@@ -2,9 +2,10 @@
 
 ## Installation
 
-  * [Fedora installation](fedora-installation.md)
+  * [PyPI installation](pypi-installation.md)
   * [System installation](system-installation.md)
   * [Virtual environment installation](virtualenv-installation.md)
+  * [Fedora installation](fedora-installation.md)
   * [Windows installation](windows-installation.md)
 
 ## Usage

docs/pypi-installation.md

@@ -0,0 +1,10 @@
+# PyPI installation
+
+  1. Install this application using Python package manager:
+  ```
+  pip3 install --user wloc
+  ```
+  2. Run the installed application:
+  ```
+  wloc --help
+  ```