Added other architectures to documentation (#89)

Author: blaubaer

manual/includes/downloads.md

@@ -1,7 +1,7 @@
 # Downloads {#downloads}
 
-* **Linux**: [32-Bit](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-linux-386.tar.gz) | [64-Bit](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-linux-amd64.tar.gz)
-* **Windows**: [32-Bit](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-windows-386.zip) | [64-Bit](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-windows-amd64.zip)
-* **Mac OS X**: [64-Bit](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-darwin-amd64.tar.gz)
+* **Linux**: [i386](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-linux-386.tar.gz) | [AMD64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-linux-amd64.tar.gz) | [ARM64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-linux-arm64.tar.gz)
+* **Windows**: [i386](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-windows-386.zip) | [AMD64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-windows-amd64.zip) | [ARM64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-windows-arm64.zip)
+* **Mac OS X**: [AMD64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-darwin-amd64.tar.gz) | [ARM64](https://github.com/echocat/caretakerd/releases/download/v{{.Version}}/caretakerd-darwin-arm64.tar.gz)
 * [Alternative downloads for version {{.Version}}](https://github.com/echocat/caretakerd/releases/v{{.Version}}")
 * [Archive](https://github.com/echocat/caretakerd/releases)