Add repository input (#58) (#61)

action.yml

@@ -27,6 +27,9 @@ inputs:
   fail_on_unmatched_files:
     description: 'Fails if any of the `files` globs match nothing. Defaults to false'
     required: false
+  repository:
+    description: 'Repository to make releases against, in <owner>/<repo> format'
+    required: false
 env:
   'GITHUB_TOKEN': 'As provided by Github Actions'
 outputs:
@@ -37,4 +40,4 @@ runs:
   main: 'dist/index.js'
 branding:
   color: 'green'
-  icon: 'package'
+  icon: 'package'