Update readme

Author: rodrigoprimo

README.md

@@ -154,13 +154,15 @@ phpcs-check-doc-examples
 php path/to/PHPCSDevTools/bin/phpcs-check-doc-examples
 ```
 
-If all is good, the script will exit with code 0 and no output.
+If all is good, the script will exit with code 0 and a summary of what was checked.
 
 If there are issues with the code examples, you will see error messages for each problematic example, like so:
 ```text
 Errors found while processing path/to/project/StandardName/Docs/Category/SniffNameStandard.xml:
-- Invalid example #1 does not trigger any errors, but it should.
-- Valid example #2 triggers errors, but it shouldn't.
+
+ERROR: Code block is valid and PHPCS should have returned nothing, but instead it returned an error.
+Code block title: "Valid: invalid valid code example."
+Code block content: "function sniffValidationWillFail() {}"
 ```
 
 #### Options
@@ -171,6 +173,7 @@ directories|files               One or more specific directories or files to exa
                                 exclude from the scan.
 --ignore-sniffs=<sniff1,sniff2> Comma-delimited list of sniffs to ignore.
 --help                          Print the script help page.
+-V, --version                   Display the current version of this script.
 ```
 
 ### Sniff Debugging