add to README how to run tests by tag

README.md

@@ -165,6 +165,10 @@ To simplLabs project
 // to api testing
 mvn clean test -Dtest=UiSimplLabsRunner
 ```
+To run a test by tag it just needed add the following option to the previous command (consider the tag @TCW01 as an example):
+```bash
+-Dcucumber.filter.tags="@TCW01"
+```
 
 ### How to generate html report
 To generate the report of the first time it´s mandatory install the dependency maven-atf-reports.