🐛 fix PR preview workflow

Author: Jwaminju

.github/workflows/build_pr_preview.yml

@@ -27,7 +27,7 @@ jobs:
         run: bundle install
 
       - name: Build Jekyll site
-        run: bundle exec jekyll build
+        run: bundle exec jekyll build --baseurl "/pull/${{ github.event.number }}"
 
       - name: Deploy to Preview Branch
         run: |
@@ -53,5 +53,5 @@ jobs:
               issue_number: context.issue.number,
               owner: context.repo.owner,
               repo: context.repo.repo,
-              body: `🚀 PR Preview: https://${{ github.repository_owner }}.github.io/${{ github.event.repository.name }}/pull/${{ github.event.number }}`
+              body: `🚀 PR Preview: https://${{ github.repository_owner }}.github.io/pull/${{ github.event.number }}`
             })