docs: fix incorrect default for test is_parallel
In the original RefMan 2.0 implementation, this incorrectly started
claiming that the default is false.
Fixes
@@ -50,7 +50,7 @@ kwargs_inherit: benchmark
kwargs:
is_parallel:
type: bool
- default: false
+ default: true
description: |
when false, specifies that no other test must be
running at the same time as this test
