update changelog

Author: kmoe

CHANGELOG.md

@@ -9,6 +9,7 @@ BUG FIXES
 * Fixed bug that ignored ExpectError when testing state imports [GH-550]
 * Fixed bug that sometimes prevented TestStep numbers from appearing in error output [GH-557]
 * Fixed bug that would ignore `TestStep.Destroy` when running tests. [GH-563]
+* Fixed bug where reattach info would not be supplied during tests. [GH-567]
 
 # 2.0.1 (August 10, 2020)