Add templates for github pr and issues (#27)

.github/ ISSUE_TEMPLATE/bug-report.md

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+---
+name: Bug report
+about: Report a bug in the project
+---
+
+<!-- Thank you for your contribution -->
+
+**Description**
+
+<!-- Provide a clear and concise description of the problem.
+Describe where it appears, when it occurred, and what it affects.  -->
+
+<!-- Provide relevant technical details such as the browser name and version, or the operating system. -->
+
+**Expected result**
+
+<!-- Describe what you expect to happen. -->
+
+**Actual result**
+
+<!-- Describe what happens instead. -->
+
+**Steps to reproduce**
+
+<!-- List the steps to follow to reproduce the bug. Attach any files, links, code samples, or screenshots that could help in investigating the problem. -->
+
+**Troubleshooting**
+
+<!-- Describe the steps you have already taken to solve the issue. -->

.github/ ISSUE_TEMPLATE/feature-request.md

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+---
+name: Feature request
+about: Suggest an improvement to the project
+---
+
+<!-- Thank you for your contribution.-->
+
+**Description**
+
+<!-- Provide a clear and concise description of the feature. -->
+
+**Reasons**
+
+<!-- Explain why we should add this feature. Provide use cases to illustrate its benefits. -->