a new version of tool

content/vangao.md

@@ -2,6 +2,10 @@ Title: QGIS
 Date: 2018/03/27
 Author: fei
 
+# QCad
+
+## 2d computer aided design, computer aided manufacturing (CAM)
+
 * Who is developing the tool?
   Gary Sherman.
   
@@ -13,7 +17,7 @@ Author: fei
   For Desktop GIS (Geographic information system)
   
 * Who is the tool made for?
-  
+  Designer, artist and geographer
 * When did the development of the tool start? / How old is the software?
   Started development in 2002, 15 years old