Update Roadmap

README.md

@@ -34,6 +34,7 @@ Linux Mint 18.2 [Implemented]
             regex support in search
             text zoom
             sidebar filebrowser revamp
+            inhibit session when files aren't saved
 
         xviewer:
             toolbar revamp
@@ -64,6 +65,9 @@ Linux Mint 18.2 [Implemented]
             much improved help
             refined levels and recommendations
 
+        mintwelcome:
+            support for dark themes
+
     system:
         display manager:
             switch to LightDM + unity-greeter