PR template

.github/pull_request_template.md

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+Tag name (required for release branches):
+Originator(s):
+
+Summary (include the keyword ['closes', 'fixes', 'resolves'] and issue number):
+
+Describe any changes made to build system:
+
+Describe any changes made to the namelist:
+
+List any changes to the defaults for the input datasets (e.g. boundary datasets):
+
+List all files eliminated and why:
+
+List all files added and what they do:
+
+List all existing files that have been modified, and describe the changes: 
+(Helpful git command: `git diff --name-status development...<your_branch_name>`)
+
+If there are new failures (compare to the `test/existing-test-failures.txt` file),
+have them OK'd by the gatekeeper, note them here, and add them to the file.
+If there are baseline differences, include the test and the reason for the
+diff. What is the nature of the change? Roundoff?
+
+derecho/intel/aux_sima:
+
+derecho/gnu/aux_sima:
+
+If this changes climate describe any run(s) done to evaluate the new
+climate in enough detail that it(they) could be reproduced:
+
+CAM-SIMA date used for the baseline comparison tests if different than latest: