Improve documentation accessibility

Author: raphaelstolt

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # How to contribute
 
-Thanks for considering to contribute to `git-user-bend`. While doing so please follow these single guidelines:
+Thanks for considering to contribute to `git-user-bend`. While doing so please follow these guidelines:
 
 - All code __MUST__ follow the PSR-2 coding standard. Please see [PSR-2](http://www.php-fig.org/psr/psr-2/) for more details.
 

README.md

@@ -28,7 +28,7 @@ alias gub='~/.config/composer/vendor/bin/git-user-bend $@'
 ```
 
 ## Usage
-Just run the `git-user-bend whoami` CLI within a Git repository (or an argumented one) and it will allow you to view the currently used persona respectively the Git user configuration details.
+Run the `git-user-bend whoami` CLI within a Git repository (or an argumented one) and it will allow you to view the currently used persona respectively the Git user configuration details.
 
 The personas and their usage frequencies are stored in a JSON based global storage file called `.gub.personas` in the `$HOME` directory of your system.