Technical/Update documentation (#9)

* Updated script documentation
* Updated version, changelog

Author: bestwebua

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.2.1] - 2022-02-08
+
+### Updated
+
+- Updated documentation, thanks [@TonickUA](https://github.com/TonickUA) for comments.
+
 ## [0.2.0] - 2022-02-04
 
 ### Added

README.md

@@ -45,6 +45,7 @@ wget https://raw.githubusercontent.com/RubyWorkout/frs/master/setup.sh
 Run Fast Ruby Setup script with your email, name (registered on github), github username and github personal access token as positional arguments:
 
 ```bash
+chmod +x setup.sh
 . ./setup.sh johndoe@example.com "John Doe" git_username git_token
 ```