Move details from NEWS to TESTING mds

NEWS.md

@@ -99,8 +99,7 @@ Development
 * UI fixes for georeference. Changes of copy and validation warning. (#11426)
 * Color scheme is now clickable in category ramps (#11413)
 * Fix responsive layout in onboarding steps (#11444)
-* Several improvements to parallel tests, they are faster and more consistent.
-  Run with `script/ci/runParallelTests.sh X` where X is a number of threads to use (#11636)
+* Speed improvements to parallel tests (#11636)
 * Correctly create custom category legend if style has icons (#11592)
 * Fix problem with perfect-scrollbar in Edge browsers (CartoDB/perfect-scrollbar/#2)
 * Layer onboardings are now aware on sync'd layers and highlighted area is clicked. (#11583)

TESTING.md

@@ -29,6 +29,9 @@ To avoid wasting time and resources creating once and again test users,
 if you require 'spec_helper' you have two "global test users" for the whole suite to use,
 $user_1 and $user_2. Just take care to not destroy or leave them in inconsistent state between test batteries.
 
+You can also use the following `runParallelTests.sh` script to run the tests in a multithreaded way.
+Run `script/ci/runParallelTests.sh X` where X is a number of threads to use.
+
 Troubleshooting
 ---------------