Add github templates [ci skip]

.gitattributes

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+assets/**/* linguist-vendored
+bench/**/* linguist-vendored
+.github/**/* linguist-vendored

.github/ISSUE_TEMPLATE.md

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+<!--
+  This template is for bug reports. If you are reporting a bug, please continue on. If you are here for another reason, 
+  feel free to skip the rest of this template.
+-->
+
+### Tell us about your environment
+
+**Ruby Version:**
+
+**Rails Version:**
+
+**PostgreSQL Version:**
+
+**Logidze Version:**
+
+### What did you do?
+
+### What did you expect to happen?
+
+### What actually happened?

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+  First of all, thanks for contributing!
+
+  If it's a typo fix or minor documentation update feel free to skip the rest of this template!
+-->
+
+<!--
+  If it's a bug fix, then link it to the issue, for example:
+
+  Fixes #xxx
+-->
+
+
+<!--
+  Otherwise, describe the changes: 
+
+### What is the purpose of this pull request?
+
+### What changes did you make? (overview)
+
+### Is there anything you'd like reviewers to focus on?
+
+### Checklist
+
+- [ ] I've added tests for this change
+- [ ] I've added a Changelog entry
+- [ ] I've updated a documentation (Readme)
+
+-->