ci: preview deploy output

.github/workflows/main.yml

@@ -1,7 +1,7 @@
 on:
   push:
-    #branches:
-    #  master
+    branches:
+      master
   pull_request:
 
 env:
@@ -89,7 +89,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
             github.issues.createComment({
-              issue_number: context.paylod.pull_request.number,
+              issue_number: context.issue.number,
               owner: context.repo.owner,
               repo: context.repo.repo,
               body: process.env.NETLIFY_STDOUT