Add install script + brew tap (#138)

* add install script

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* add brew tap

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* rm install warning

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* force non-prereleases

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

.goreleaser.yaml

@@ -2,7 +2,7 @@ release:
   # If set to auto, will mark the release as not ready for production
   # in case there is an indicator for this in the tag e.g. v1.0.0-rc1
   # If set to true, will mark the release as not ready for production.
-  prerelease: auto
+  prerelease: false
 
 signs:
   - artifacts: checksum
@@ -39,13 +39,12 @@ nfpms:
       - rpm
       - deb
 
-# TODO: add back in when open sourced
-#brews:
-#  - tap:
-#      owner: anchore
-#      name: homebrew-syft
-#    homepage: *website
-#    description: *description
+brews:
+  - tap:
+      owner: anchore
+      name: homebrew-syft
+    homepage: *website
+    description: *description
 
 archives:
   - format: tar.gz