chore: github issue template제작 (#17)

Author: okinawaa

.github/ISSUE_TEMPLATE/bug.yml

@@ -0,0 +1,40 @@
+name: Bug Report
+description: Report a bug
+labels: [bug]
+title: '[Bug]:'
+body:
+  - type: textarea
+    id: description
+    attributes:
+      description: 버그에 대해서 설명해주세요.
+      label: Bug description
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+
+  - type: textarea
+    id: reproduction-steps
+    attributes:
+      label: To Reproduce
+      description: 재현 방법을 자세히 알려주세요. 특정 환경에서만 발생하는 것 같다면, OS와 환경에 대한 정보도 함께 제공해주세요.
+      placeholder: |
+        최소한으로 재현 가능한 코드 또는 재현 단계를 설명해주세요. 선택 사항이지만 권장됩니다.
+
+  - type: textarea
+    id: possible-solution
+    attributes:
+      label: Possible Solution
+      placeholder: I think this is probably...
+    validations:
+      required: false
+
+  - type: textarea
+    id: etc
+    attributes:
+      label: etc.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,27 @@
+name: Feature Request
+description: Suggest an idea
+labels: [feature]
+title: '[Feature]:'
+body:
+  - type: textarea
+    id: description
+    attributes:
+      description: 원하시는 기능을 설명해주세요.
+      label: Description
+    validations:
+      required: true
+
+  - type: textarea
+    id: possible-solution
+    attributes:
+      label: Possible Solution
+      placeholder: I think this is probably...
+    validations:
+      required: false
+
+  - type: textarea
+    id: etc
+    attributes:
+      label: etc.
+    validations:
+      required: false