Revert "Update repo to new Software Carpentry Workbench format"

.github/ISSUE_TEMPLATE.md

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+<details>
+<summary><strong>Instructions</strong></summary>
+
+Thanks for contributing! :heart:
+
+If this contribution is for instructor training, please email the link to this contribution to
+checkout@carpentries.org so we can record your progress. You've completed your contribution
+step for instructor checkout by submitting this contribution!
+
+If this issue is about a specific episode within a lesson, please provide its link or filename.
+
+Keep in mind that **lesson maintainers are volunteers** and it may take them some time to
+respond to your contribution. Although not all contributions can be incorporated into the lesson
+materials, we appreciate your time and effort to improve the curriculum. If you have any questions
+about the lesson maintenance process or would like to volunteer your time as a contribution
+reviewer, please contact The Carpentries Team at team@carpentries.org.
+
+You may delete these instructions from your comment.
+
+\- The Carpentries
+</details>

.github/PULL_REQUEST_TEMPLATE.md

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+<details>
+<summary><strong>Instructions</strong></summary>
+
+Thanks for contributing! :heart:
+
+If this contribution is for instructor training, please email the link to this contribution to
+instructor.training@carpentries.org so we can record your progress. You've completed your contribution
+step for instructor checkout by submitting this contribution!
+
+Keep in mind that **lesson maintainers are volunteers** and it may take them some time to
+respond to your contribution. Although not all contributions can be incorporated into the lesson
+materials, we appreciate your time and effort to improve the curriculum. If you have any questions
+about the lesson maintenance process or would like to volunteer your time as a contribution
+reviewer, please contact The Carpentries Team at team@carpentries.org.
+
+You may delete these instructions from your comment.
+
+\- The Carpentries
+</details>