feat: add input for short description

src/dockerhub-helper.ts

@@ -1,6 +1,8 @@
 import * as core from '@actions/core'
 import * as fetch from 'node-fetch'
 
+const DESCRIPTION_MAX_CHARS = 100
+
 export async function getToken(
   username: string,
   password: string
@@ -22,11 +24,15 @@ export async function getToken(
 export async function updateRepositoryDescription(
   token: string,
   repository: string,
+  description: string,
   fullDescription: string
 ): Promise<void> {
   const body = {
     full_description: fullDescription
   }
+  if (description) {
+    body['description'] = description.slice(0, DESCRIPTION_MAX_CHARS)
+  }
   await fetch(`https://hub.docker.com/v2/repositories/${repository}`, {
     method: 'patch',
     body: JSON.stringify(body),