Add downloads counter for 1.5.4. Remove some older ones since they won't

fit into a single row

docs/Readme.md

@@ -1,8 +1,7 @@
 [![VCMI](https://github.com/vcmi/vcmi/actions/workflows/github.yml/badge.svg?branch=develop&event=push)](https://github.com/vcmi/vcmi/actions/workflows/github.yml?query=branch%3Adevelop+event%3Apush)
 [![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/1.5.0/total)](https://github.com/vcmi/vcmi/releases/tag/1.5.0)
-[![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/1.5.1/total)](https://github.com/vcmi/vcmi/releases/tag/1.5.1)
-[![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/1.5.2/total)](https://github.com/vcmi/vcmi/releases/tag/1.5.2)
 [![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/1.5.3/total)](https://github.com/vcmi/vcmi/releases/tag/1.5.3)
+[![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/1.5.4/total)](https://github.com/vcmi/vcmi/releases/tag/1.5.4)
 [![Github Downloads](https://img.shields.io/github/downloads/vcmi/vcmi/total)](https://github.com/vcmi/vcmi/releases)
 
 # VCMI Project