updated README

Author: robswc

README.md

@@ -1,9 +1,9 @@
 ![demopic](img/webhooks_bot_logo.png)
 
-![](https://img.shields.io/github/license/robswc/tradingview-webhooks-bot.svg)
-![](https://img.shields.io/github/downloads/robswc/tradingview-webhooks-bot/total)
-![](https://img.shields.io/github/commit-activity/y/robswc/tradingview-webhooks-bot.svg)
-![](https://img.shields.io/github/repo-size/robswc/tradingview-webhooks-bot.svg)
+![](https://img.shields.io/github/license/robswc/tradingview-webhooks-bot?style=for-the-badge)
+![](https://img.shields.io/github/downloads/robswc/tradingview-webhooks-bot/total?style=for-the-badge
+![](https://img.shields.io/github/commit-activity/y/robswc/tradingview-webhooks-bot?style=for-the-badge)
+![](https://img.shields.io/github/repo-size/robswc/tradingview-webhooks-bot?style=for-the-badge
 ![](https://img.shields.io/twitter/follow/robswc.svg?label=follow%20%40%20robswc&style=social)