docs: added issue template
RENAME
CODE_OF_CONDUCT.md
.github/CODE_OF_CONDUCT.md
RENAME
CONTRIBUTING.md
.github/CONTRIBUTING.md
ADD
.github/ISSUE_TEMPLATE.md
+**Do you want to request a *feature* or report a *bug*?**
+
+**What is the current behavior?**
+
+**If the current behavior is a bug, please provide the steps to reproduce.**
+
+**What is the expected behavior?**
+
+**Please mention your oclif and OS version.**

docs: added issue template