README.md in RDee-0.5 vs README.md in RDee-0.6

@@ -68,9 +68,10 @@
 | winxp | Windows XP |
 | mountain_lion | OS X 10.8 |
 | mavricks | OS X 10.9 |
 | yosemite | OS X 10.10 |
 | el_capitan | OS X 10.11 |
+| sierra | macOS 10.12 |
 | linux | Linux |
 | ios60 | 'OS X 10.8'|
 | ios61 | 'OS X 10.8' |
 | ios70 | 'OS X 10.9' |
 | ios71 | 'OS X 10.9' |