add goreleaser config file

.goreleaser.yml

@@ -0,0 +1,26 @@
+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+builds:
+- 
+  main: ./cmd/fathom/main.go
+  goos:
+      - linux
+  goarch:
+    - amd64
+    - 386
+    - arm64    
+  env:
+    - CGO_ENABLED=0  
+  hooks:
+    pre: packr
+    post: packr clean
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'