reorder chapters

doc/doc.tex

@@ -245,11 +245,11 @@ frame=tb}
     \chapter{Architecture}\label{ch:architecture}
     \input{chapter/2architecture}
 
-    \chapter{Current Progress}\label{ch:progress}
-    \input{chapter/3progress}
-
     \chapter{UI and visuals}\label{ch:ui}
-    \input{chapter/4ui}
+    \input{chapter/3ui}
+
+    \chapter{Current Progress}\label{ch:progress}
+    \input{chapter/4progress}
 
     \chapter{Retrospection}
     \input{chapter/5retrospection}