[skip ci] Update CHANGES - Version 0.8.1
+0.8.1 (March 15, 2019)
+======================
+
+ * FIX: Revising antsBrainExtraction dual workflow (#316) @oesteban
+ * ENH: Expose bias-corrected T1w before skull-stripping (#317) @oesteban
+ * ENH: ``DerivativesDataSink`` - enable JSON sidecar writing (#318) @oesteban
+
0.8.0 (March 05, 2019)
======================
