Merge remote-tracking branch 'apahim/docs_skip_decorator_teardown'

Signed-off-by: NCleber Rosa <crosa@redhat.com>

docs/source/WritingTests.rst

@@ -987,6 +987,9 @@ Will produce the following result::
     TESTS TIME : 0.00 s
     JOB HTML   : $HOME/avocado/job-results/job-2017-02-03T17.16-1bd8642/html/results.html
 
+Notice that the `tearDown()` will not be executed when `skip()` is used.
+Any cleanup treatment has to be handled by the `setUp()`, before the
+call to `skip()`.
 
 Avocado Skip Decorators
 -----------------------
@@ -1033,6 +1036,9 @@ Will produce the following result::
 Notice the ``test3`` was not skipped because the provided condition was
 not ``False``.
 
+Using the skip decorators, since the `setUp()` was already executed, the
+`tearDown()` will be also executed.
+
 
 Cancelling Tests
 ================