Improve build.sh

Author: Tom5521

build.sh

@@ -1,8 +1,11 @@
 #!/bin/bash
 
+echo building for arm64
 export GOARCH=arm64
 go build -o builds/arm64/ArchInstaller-arm64 .
+echo building for amd64
 export GOARCH=amd64
 go build -o builds/amd64/ArchInstaller-amd64 .
+echo building for 386
 export GOARCH=386
 go build -o builds/i386/ArchInstaller-i386 .