Overview Figure Added to Readme (#124)

* add : overview figure added.

* update : readme file updated with Nafas overview figure.

* add : caption added to the overview figure.

* update : image caption shortened.

README.md

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 <a href="https://github.com/sepandhaghighi/nafas"><img alt="GitHub repo size" src="https://img.shields.io/github/repo-size/sepandhaghighi/nafas"></a>
 <a href="https://discord.gg/CtZUNKJHP4"><img src="https://img.shields.io/discord/901570530145107978.svg" alt="Discord Channel"></a>
 </div>	
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 ## Overview						
 Breathing gymnastics is a system of breathing exercises that focuses on the treatment of various diseases and general health promotion.
@@ -17,6 +17,17 @@ With multiple breathing patterns, Nafas helps you find your way to a detoxified
 No need to walk away to take a break, just sit comfortably, run Nafas and let the journey begin.
 **Nafas** means breath in Persian.
 
+Nafas offers a selection of predefined breathing exercise programs.
+Each program consists of multiple cycles.
+The exercises begin with a gentle preparation phase to help users settle in and focus, followed by a series of timed inhales and exhales.
+Between these breaths, the programs incorporate deliberate pauses that allow users to retain and sustain their breath.
+These cycles aim to enhance both physical and mental well-being.
+
+<div align="center">
+	<img src="https://github.com/sepandhaghighi/nafas/raw/master/otherfiles/overview.png" width=100px>
+	<p>Nafas Programs' Cycle</p>
+</div>
+
 <table>
 	<tr> 
 		<td align="center">Open Hub</td>