Update according to comments in review

Author: dboltovskyi

proposals/NNNN-atf-script-runner.md

@@ -7,10 +7,8 @@
 
 ## Introduction
 
-Originally ATF was developed for SDL developers and thats why it lacks a few features of modern Test Frameworks
-(Java jUnit, Python Nose, etc.)
-
-The purpose of this proposal is to develop extended script runner as part of ATF functionality.
+ATF is a great tool for both developers and testers that help test any change in SDL.
+But it lacks a powerful test script runner.
 
 ## Motivation
 
@@ -22,22 +20,22 @@ Currently ATF is unable to:
 
 ## Proposed solution
 
-Develop script runner with the following features:
+The purpose of this proposal is to develop extended script runner as part of ATF functionality with the following features:
 
-  - Ability to run single test script
-  - Ability to run batch of test scripts
-  - Ability to run test set
-  - Possibility to run scripts in parallel
-  - Ability to create reports in standard format with logs collected
+  - An option to run single test script
+  - An option to run batch of test scripts
+  - An option to run test set
+  - Possibility to run test scripts in parallel (in separate threads)
+  - Ability to create reports with logs collected in a format used by continuous integration system
 
 ## Potential downsides
 
-Existing CI jobs needs to be reconfigured in order to use new script runner.
+N/A
 
 ## Impact on existing code
 
 No impact on existing code is observed.
 
 ## Alternatives considered
 
-Use one of the existing test runners, e.g. Python Nose, PyTest etc.
+Refactoring of existing runner, but it will negotiate current big base of test artifacts