update goreleaser config file

Author: smallnest

.goreleaser.yml

@@ -1,8 +1,22 @@
 before:
   hooks:
 builds:
-- env:
-  - CGO_ENABLED=0
+  -
+    main: ./rb.go
+    binary: rb
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - freebsd
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - 386
+    ignore:
+      - goos: darwin
+        goarch: 386
 archives:
 - replacements:
     darwin: Darwin