chore: Ported issue template

from https://github.com/peaceiris/actions-gh-pages

.github/ISSUE_TEMPLATE/1_user_support.md

@@ -0,0 +1,34 @@
+---
+name: User Support
+about: Questions for this Action
+title: 'sample_title'
+labels: support
+assignees: peaceiris
+---
+
+**Check list before opening this issue**
+
+- [ ] I read the latest README of this repository.
+
+For users of the GitHub Pages Action:
+
+- [ ] I checked [Available Options](https://github.com/peaceiris/actions-gh-pages#options)
+- [ ] I followed [Tips and FAQs](https://github.com/peaceiris/actions-gh-pages#tips-and-faq)
+- [ ] I tried [Workflow Examples](https://github.com/peaceiris/actions-gh-pages#examples)
+
+**Describe your question**
+
+A clear and concise description of what the question is.
+
+**Link to your contents**
+
+- Link to your public repository here
+- Link to your workflow here
+
+**Screenshots**
+
+If applicable, add screenshots to help explain your question.
+
+**Additional context**
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/2_bug_report.md

@@ -1,7 +1,7 @@
 ---
-name: Bug report
-about: Create a report to help us improve
-title: 'Bug: This is a sample issue title'
+name: Bug Report
+about: First, use the User Support Issue Template
+title: 'sample_title'
 labels: bug
 assignees: peaceiris
 

.github/ISSUE_TEMPLATE/3_proposal.md

@@ -1,7 +1,7 @@
 ---
 name: Proposal
 about: Suggest an idea for this project
-title: 'proposal: This is a sample title'
+title: 'sample_title'
 labels: proposal
 assignees: peaceiris