docs: document that we can use pytest to run the tests

Author: joanise

README.md

@@ -149,6 +149,7 @@ Many thanks to:
 ## Tests
 
 There are many ways to run the unit tests, if you installed EveryVoice from source:
+ - Run all the tests with the most concise output: `pytest`
  - Run all the dev tests: `everyvoice/run_tests.py dev` or `everyvoice test dev`
  - Run the tests with verbose logs: `everyvoice/run_tests.py --verbose dev`
  - Show the names of the other suites you can run: `everyvoice/run_tests.py -h`

make-everyvoice-env

@@ -273,4 +273,4 @@ if [[ $USE_UV ]]; then
 else
     echo "Run \"conda activate $ENV2ACTIVATE\" to activate it."
 fi
-echo "Run \"everyvoice/run_tests.py all\" to validate it."
+echo "Run \"pytest\" to validate it."