Update README.md

Author: turastory

README.md

@@ -3,4 +3,24 @@
 Command line interface for Jamquery.
 Pretty unstable for now.
 
-This program is fully written in Python.
+The program is fully written in Python.
+
+
+## Build
+
+Install [PyInstaller](https://pyinstaller.readthedocs.io/en/stable/) in your computer and type in your terminal:
+
+```
+pyinstaller -F jamquery.py
+```
+
+This will create executable `dist/jamquery` file in the project root.
+
+Or... just download the `jamquery` file in repository root.
+
+
+## Use
+
+Copy the `jamquery` executable to your path that you like. (e.g. /Users/your-name/bin)
+
+Make sure that those directories are properly listed in $PATH variable.