javascript image add & update README.md file

Author: SamiurRahmanMukul

JavaScript-Banner.png

@@ -1 +1,78 @@
-# JavaScript-Programming-Mastery
+<!-- social media connecting shield -->
+
+[![Website][website-shield]][website-url]
+[![Facebook][facebook-shield]][facebook-url]
+[![Instagram][instagram-shield]][instagram-url]
+[![Twitter][twitter-shield]][twitter-url]
+[![LinkedIn][linkedin-shield]][linkedin-url]
+[![Github][github-shield]][github-url]
+
+<p align="center">
+  <img src="JavaScript-Banner.png" title="JavaScript Banner With Samiur Rahman Mukul" alt="JavaScript-Banner" width="450" height="300" style="border: 1px solid #000; border-radius: 4px; padding: 5px;" />
+</p>
+
+# JavaScript Programming Mastery
+
+<p align="center">
+  <strong>What is JavaScript ?</strong> <br />
+  ✨ JavaScript is a dynamic programming language that's used for web development, in web applications, for game development, and lots more. It allows you to implement dynamic features on web pages that cannot be done with only HTML and CSS.
+</p>
+
+### JavaScript Basic Syntax
+
+```js
+  // variable declare
+  var name = "Samiur Rahman Mukul";
+  const degree = "B.Sc. Engineering in CSE";
+  let age = 22;
+
+  // simple function declare
+  function() {
+    console.log("Hello World!");
+  };
+
+  // arrow function declare (ES6 feature)
+  const aboutMe = (name, age, degree) => {
+    console.log(`Name: ${name} \n Education: ${degree} \n Age: ${age}`);
+  };
+```
+
+## Repository Content Of Glance
+
+- 1-JavaScript-Fundamental
+- 2-JavaScript-Tutorial
+- 3-JavaScript-Problem-Solving
+- 4-JavScript-ES6-&-OOP
+- 5-JS-Data-Structure-And-Algorithm
+- 6-JavaScript-DOM-&-BOM
+- 7-JavaScript-Async-Callback-Promise
+- 8-JavaScript-API-Calling
+- 9-JavaScript-JSON
+- 10-JavaScript-AJAX
+- 11-JavaScript-jQuery
+- 12-JavaScript-More-Library
+- 13-JS-Example-&-References
+- 14-JavaScript-Interview-Preparation
+- 15-JavaScript-Advanced-Topics
+
+<p align="center">
+  <b>HAPPY <i>JavaScript</i> PROGRAMMING & WEB DEVELOPING 👩‍💻 </b>
+</p>
+
+<!-- my website & social media links -->
+
+[website-url]: http://www.SamiurRahmanMukul.epizy.com
+[facebook-url]: https://www.facebook.com/SamiurRahmanMukul
+[instagram-url]: https://www.instagram.com/samiur_rahman_mukul
+[twitter-url]: https://www.twitter.com/SamiurRahMukul
+[linkedin-url]: https://www.linkedin.com/in/SamiurRahmanMukul
+[github-url]: https://www.github.com/SamiurRahmanMukul
+
+<!-- shield icon links -->
+
+[website-shield]: https://img.shields.io/badge/-Website-black.svg?style=flat-square&logo=appveyor&color=555&logoColor=white
+[facebook-shield]: https://img.shields.io/badge/-Facebook-black.svg?style=flat-square&logo=facebook&color=555&logoColor=white
+[instagram-shield]: https://img.shields.io/badge/-Instagram-black.svg?style=flat-square&logo=instagram&color=555&logoColor=white
+[twitter-shield]: https://img.shields.io/badge/-Twitter-black.svg?style=flat-square&logo=twitter&color=555&logoColor=white
+[linkedin-shield]: https://img.shields.io/badge/-LinkedIn-black.svg?style=flat-square&logo=linkedin&colorB=555
+[github-shield]: https://img.shields.io/badge/-Github-black.svg?style=flat-square&logo=github&color=555&logoColor=white