Issue template links

Author: p1c2u

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,6 @@
+blank_issues_enabled: false
+blank_issues_enabled: false
+contact_links:
+  - name: "Python OpenAPI Contributing: Reporting Bugs"
+    url: https://openapi-core.readthedocs.io/en/latest/contributing.html#reporting-bugs
+    about: Read guidance about Reporting Bugs in the repository.