README: badges for the runtime requirement, CI and the current release

The runtime one carries a fact that only started being true with 1.35.0 and
that a reader otherwise meets either three screens down or, worse, when the
executable refuses to start.

Build status is deliberately honest in both directions: it turns red in public
when main breaks. Downloads@latest sits next to the running total because the
total is dominated by history and says nothing about the release people are
actually on.

All three are dynamic, so unlike the three static shields above them they
cannot drift out of date.

Author: wygodad

README.md

@@ -7,6 +7,9 @@
 [![Digitally signed releases](https://img.shields.io/badge/releases-digitally%20signed-2ea043?logo=windows&logoColor=white)](#digitally-signed-releases)
 [![Latest release](https://img.shields.io/github/v/release/wygodad/ghostdeck?label=latest&color=3c7dff)](https://github.com/wygodad/ghostdeck/releases/latest)
 [![Downloads](https://img.shields.io/github/downloads/wygodad/ghostdeck/total?color=3c7dff)](https://github.com/wygodad/ghostdeck/releases)
+[![Downloads of the latest release](https://img.shields.io/github/downloads/wygodad/ghostdeck/latest/total?label=downloads%40latest&color=3c7dff)](https://github.com/wygodad/ghostdeck/releases/latest)
+[![Build](https://img.shields.io/github/actions/workflow/status/wygodad/ghostdeck/ci.yml?branch=main&label=build)](https://github.com/wygodad/ghostdeck/actions/workflows/ci.yml)
+[![.NET 8 Desktop Runtime](https://img.shields.io/badge/runtime-.NET%208%20Desktop-512bd4?logo=dotnet&logoColor=white)](https://dotnet.microsoft.com/download/dotnet/8.0)
 [![No kernel driver](https://img.shields.io/badge/kernel%20driver-none-2ea043)](#how-it-works-short-version)
 [![15 languages](https://img.shields.io/badge/UI-15%20languages-8d63ff)](#features)
 [![License](https://img.shields.io/github/license/wygodad/ghostdeck?color=98a0ae)](LICENSE)