add issue and pr templates

.github/ISSUE_TEMPLATE.md

+Thanks for looking to open an issue for this project!
+
+If you are opening an issue to add a new entry, please consider opening a pull request instead!
+

.github/PULL_REQUEST_TEMPLATE.md

+Thank you for taking the time to work on a PR for this project!
+
+To ensure your PR is dealt with swiftly please check the following:
+
+- [ ] Your submissions are formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md).
+        
+- [ ] Your additions are ordered alphabetically.
+- [ ] You have searched the repository for any relevant issues or PRs.
+- [ ] Any category you are creating has the minimum requirement of 3 items.