Use Issue Template & Pull Request Template

.github/ISSUE_TEMPLATE/bug.md

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+---
+name: Bug report
+about: Report something not working on python-shogi. 
+title: ''
+labels: bug
+assignees: ''
+---
+
+<!-- Thank you for reporting an issue. First, please search for duplicate existing issues. -->
+
+**Exactly where the bug happened**
+
+**Steps to reproduce the bug**
+
+**What did you expect to happen?**
+
+**What happened instead?**
+
+**Operating system and browser version**
+
+<!-- Add one or more screenshots if possible -->

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+ - name: Support
+ about: GitHub issues are meant for tracking enhancements and bugs, not general support. Instead, search the Wiki, StackOverflow.

.github/ISSUE_TEMPLATE/other.md

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+---
+name: Other
+about: Other issue or enhancement for python-shogi.
+title: ''
+labels: ''
+assignees: ''
+---

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+Thank you for contributing to this project!
+-->
+
+### Why:
+
+Closes [issue link]
+
+<!--
+- If there's an existing issue for your change, please link to it.
+- If there's _not_ an existing issue, please open one first to make it more likely that this update will be accepted: https://github.com/gunyarakun/python-shogi/issues/new/choose. -->
+
+### What's being changed:
+
+<!-- Share artifacts of the changes, be they code snippets, GIFs or screenshots; whatever shares the most context. If you made changes to the `content` directory, a table will populate in a comment below with the staging and live article links -->