fix: update CODEOWNERS

Author: c-dilks

CODEOWNERS

@@ -21,6 +21,7 @@ src/iguana/algorithms/clas12/rga/FiducialFilterPass1/* @Gregtom3
 src/iguana/algorithms/clas12/rga/FiducialFilterPass2/* @tbhayward
 src/iguana/algorithms/clas12/rga/MomentumCorrection/* @RichCap @c-dilks
 src/iguana/algorithms/example/ExampleAlgorithm/* @c-dilks
+src/iguana/algorithms/example/ExampleSubclassAlgorithm/* @c-dilks
 src/iguana/algorithms/physics/Depolarization/* @c-dilks
 src/iguana/algorithms/physics/DihadronKinematics/* @c-dilks
 src/iguana/algorithms/physics/InclusiveKinematics/* @c-dilks