Merge pull request #4218 from HypothesisWorks/DRMacIver/codeowner

Add DRMacIver as code owner

Author: Zac-HD

CODEOWNERS

@@ -1,6 +1,6 @@
 # Engine changes need to be approved by Zac-HD, as per
 # https://github.com/HypothesisWorks/hypothesis/blob/master/guides/review.rst#engine-changes
-/hypothesis-python/src/hypothesis/internal/conjecture/ @Zac-HD
+/hypothesis-python/src/hypothesis/internal/conjecture/ @DRMacIver @Zac-HD 
 
 # Changes to the paper also need to be approved by DRMacIver or Zac, as authors
 /paper.md @DRMacIver @Zac-HD