chore: update README

README.md

@@ -3,13 +3,19 @@
   <p align="center">React renderer for creating PDF files on the browser and server<p>
   <p align="center">
     <a href="https://www.npmjs.com/package/@react-pdf/renderer">
-      <img src="https://img.shields.io/npm/v/@react-pdf/renderer.svg" />
+      <img src="https://img.shields.io/npm/v/@react-pdf/renderer?style=flat&colorA=000000&colorB=000000" />
+    </a>
+     <a href="https://opencollective.com/react-pdf">
+      <img src="https://img.shields.io/opencollective/all/react-pdf?style=flat&colorA=000000&colorB=000000" />
     </a>
     <a href="https://github.com/diegomura/react-pdf/blob/master/LICENSE">
-      <img src="https://img.shields.io/github/license/diegomura/react-pdf.svg" />
+      <img src="https://img.shields.io/github/license/diegomura/react-pdf?style=flat&colorA=000000&colorB=000000" />
+    </a>
+    <a href="https://blockchain.com/btc/address/bc1qj223udztpmt5dck46dw0yap08yum63ht56h90v">
+      <img src="https://img.shields.io/badge/BTC-f5f5f5?style=flat&colorA=000000&colorB=000000" />
     </a>
-    <a href="https://github.com/prettier/prettier">
-      <img src="https://img.shields.io/badge/styled_with-prettier-ff69b4.svg" />
+     <a href="https://blockchain.com/eth/address/0x4e1DB76bA0858BbCAa4DD804418D0D9EcF77B1cC">
+      <img src="https://img.shields.io/badge/ETH-f5f5f5?style=flat&colorA=000000&colorB=000000" />
     </a>
   </p>
 </p>