Apply suggestions from code review

Co-Authored-By: Jan Černý <[email protected]>

Author: matejak

docs/contribute/testing.adoc

@@ -220,13 +220,13 @@ verify_results "def" test_probe_foo.xml results.xml 13
 ----
 
 The function extracts the actual test/definition result, and compares it with the respective test/definition comment.
-So for example, if the test contains `comment="true"`, the test passes only if result of the respective test is `true`,
+For example, if the test contains `comment="true"`, the test passes only if result of the respective test is `true`,
 if `comment="false"`, a `false` result is expected.
-If the comment is missing or it has other value, it is assumed that the result shouldn't be neither `true` or `false`.
+If the comment is missing or it has other value, it is assumed that the result should be neither `true` nor `false`.
 
 NOTE: This function expects that the OVAL `TYPE` is numbered from `1` to `COUNT`
 in the `RESULTS_FILE`.
-Type is typically `def` or `tst` for definitions and tests respectively.
+`TYPE` is typically `def` or `tst` for definitions and tests respectively.
 
 
 ==== assert_exists function