Update issue template for new app

.gitlab/issue_templates/new_app.md

@@ -2,9 +2,15 @@
 
 ## Single sign-on
 
-- [ ] Integrate the new app into the signle sign-on system
+* [ ] Integrate the new app into the signle sign-on system
+
+## Documentation
+
+* [ ] Add app to `docs/installation_instructions.md`
+* [ ] Add app to `docs/testing_instructions.md`
 
 ## Tests
 
-- [ ] Add behave feature (`tests/behave/feature`)
-- [ ] Check for successful helmrelease (`test/pytest/test_helmreleases.py`)
+* [ ] Add behave feature (`tests/behave/feature`)
+* [ ] Check for successful helmrelease (`test/pytest/test_helmreleases.py`)
+* [ ] Test cert (`test/pytest/test_certs.py`)