Refactor badge section in README.md

Updated badge links and added HTML formatting for better display.

Signed-off-by: Raunak Madan <143412156+CodexRaunak@users.noreply.github.com>

Author: CodexRaunak

README.md

@@ -6,11 +6,18 @@
       </picture>
 </p>
 
-![GitHub contributors](https://img.shields.io/github/contributors/layer5io/layer5.svg)
-[![GitHub](https://img.shields.io/github/license/layer5io/layer5.svg)](https://github.com/layer5io/wasm-filters/blob/master/LICENSE) 
-![GitHub issues by-label](https://img.shields.io/github/issues/layer5io/layer5/help%20wanted.svg?color=%23DDDD00)
-[![Slack](https://img.shields.io/badge/Slack-@layer5.svg?logo=slack)](http://slack.layer5.io)
-![Twitter Follow](https://img.shields.io/twitter/follow/layer5.svg?label=Follow&style=social)
+<p align="center">
+<a href="https://github.com/layer5io/layer5/graphs/contributors" alt="GitHub contributors">
+<img src="https://img.shields.io/github/contributors/layer5io/layer5.svg" /></a>
+<a href="https://github.com/layer5io/wasm-filters/blob/master/LICENSE" alt="License">
+<img src="https://img.shields.io/github/license/layer5io/layer5.svg" /></a>
+<a href="https://github.com/issues?q=is%3Aopen+is%3Aissue+archived%3Afalse+(org%3Alayer5io+OR+org%3Ameshery+OR+org%3Alayer5labs+OR+org%3Aservice-mesh-performance+OR+org%3Aservice-mesh-patterns+OR+org%3Ameshery-extensions)+label%3A%22help+wanted%22" alt="Help wanted issues">
+<img src="https://img.shields.io/github/issues/layer5io/layer5/help%20wanted.svg?color=%23DDDD00" /></a>
+<a href="http://slack.layer5.io" alt="Slack">
+<img src="https://img.shields.io/badge/Slack-@layer5.svg?logo=slack" /></a>
+<a href="https://twitter.com/layer5" alt="Twitter Follow">
+<img src="https://img.shields.io/twitter/follow/layer5.svg?label=Follow&style=social" /></a>
+</p>
 
 # WebAssembly Filters for Envoy