added throwsMany documentation

Co-authored-by: daniel-dios <daniel.schezdios@gmail.com>

README.md

@@ -1321,6 +1321,7 @@ An Answer can be followed up by one or more additional answers.
 |`returnsMany list`|specify that the matched call returns a value from the list, with subsequent calls returning the next element|
 |`returnsArgument(n)`|specify that the matched call returns the nth argument of that call|
 |`throws ex`|specify that the matched call throws an exception|
+|`throwsMany ex`| specify that the matched call throws an exception from the list, with subsequent calls throwing the next exception|
 |`answers { code }`|specify that the matched call answers with a code block scoped with `answer scope`|
 |`coAnswers { code }`|specify that the matched call answers with a coroutine code block  with `answer scope`|
 |`answers answerObj`|specify that the matched call answers with an Answer object|
@@ -1341,6 +1342,7 @@ So this is similar to the `returnsMany` semantics.
 |`andThen value`|specify that the matched call returns one specified value|
 |`andThenMany list`|specify that the matched call returns a value from the list, with subsequent calls returning the next element|
 |`andThenThrows ex`|specify that the matched call throws an exception|
+|`andThenThrowsMany ex`|specify that the matched call throws an exception from the list, with subsequent calls throwing the next exception|
 |`andThen { code }`|specify that the matched call answers with a code block scoped with `answer scope`|
 |`coAndThen { code }`|specify that the matched call answers with a coroutine code block with `answer scope`|
 |`andThenAnswer answerObj`|specify that the matched call answers with an Answer object|