Update name of tests step to be more clear as to current state

.github/workflows/tests.yml

@@ -105,7 +105,7 @@ jobs:
     - name: create cover folder if not exists, to cache coverage reporting results
       run: mkdir -p ./cover/    
 
-    - name: Run tests, failing loudly on error, emitting coverage to file for use when reporting test coverage of recently changed files
+    - name: Run tests, failing loudly on error, emitting coverage to file for use when reporting test coverage in later proposed step
       run: set -eo pipefail; mix test --exclude needs_attention --cover | tee ./cover/test_coverage_by_file.txt
 
     - name: emit hint on where to update minimum test coverage