alphabetize and add note on pending PRs

.github/pull_request_template.md

@@ -33,16 +33,16 @@
 # Change characteristics
 - Is this a breaking change (a change in existing functionality)? YES/NO
 - Does this change require a documentation update? YES/NO
-- Does this change require an update to any of the following submodules? YES/NO
-  - [ ] UFS-weather-model
-  - [ ] UFS-UTILS
+- Does this change require an update to any of the following submodules? YES/NO (If YES, please add a link to any PRs that are pending.)
+  - [ ] EMC verif-global
+  - [ ] GDAS
+  - [ ] GFS-utils
   - [ ] GSI
-  - [ ] GSI-utils
   - [ ] GSI-monitor
-  - [ ] GDAS
-  - [ ] EMC verif-global
+  - [ ] GSI-utils
+  - [ ] UFS-utils
+  - [ ] UFS-weather-model
   - [ ] wxflow
-  - [ ] GFS-utils
 
 
 # How has this been tested?