Update badges

Author: marcusolsson

README.md

@@ -2,8 +2,8 @@
 
 [![Build](https://github.com/marcusolsson/grafana-json-datasource/workflows/CI/badge.svg)](https://github.com/marcusolsson/grafana-json-datasource/actions?query=workflow%3A%22CI%22)
 [![Release](https://github.com/marcusolsson/grafana-json-datasource/workflows/Release/badge.svg)](https://github.com/marcusolsson/grafana-json-datasource/actions?query=workflow%3ARelease)
-[![Marketplace](https://img.shields.io/badge/dynamic/json?color=orange&label=marketplace&prefix=v&query=%24.items%5B%3F%28%40.slug%20%3D%3D%20%22marcusolsson-json-datasource%22%29%5D.version&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins)](https://grafana.com/grafana/plugins/marcusolsson-json-datasource)
-[![Downloads](https://img.shields.io/badge/dynamic/json?color=orange&label=downloads&query=%24.items%5B%3F%28%40.slug%20%3D%3D%20%22marcusolsson-json-datasource%22%29%5D.downloads&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins)](https://grafana.com/grafana/plugins/marcusolsson-json-datasource)
+[![Marketplace](https://img.shields.io/badge/dynamic/json?logo=grafana&color=F47A20&label=marketplace&prefix=v&query=%24.items%5B%3F%28%40.slug%20%3D%3D%20%22marcusolsson-json-datasource%22%29%5D.version&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins)](https://grafana.com/grafana/plugins/marcusolsson-json-datasource)
+[![Downloads](https://img.shields.io/badge/dynamic/json?logo=grafana&color=F47A20&label=downloads&query=%24.items%5B%3F%28%40.slug%20%3D%3D%20%22marcusolsson-json-datasource%22%29%5D.downloads&url=https%3A%2F%2Fgrafana.com%2Fapi%2Fplugins)](https://grafana.com/grafana/plugins/marcusolsson-json-datasource)
 [![License](https://img.shields.io/github/license/marcusolsson/grafana-json-datasource)](LICENSE)
 [![Twitter](https://img.shields.io/twitter/follow/marcusolsson?color=%231DA1F2&label=twitter&style=plastic)](https://twitter.com/marcusolsson)