fix version

docs/modules/tutorials/pages/how-to/modeling/blender/blender.adoc

@@ -1,6 +1,6 @@
 = Creating assets in Blender3D
-:revnumber: 2.0
-:revdate: 2020/07/15
+:revnumber: 2.1
+:revdate: 2020/07/23
 
 
 This section discusses how to create and import models from Blender3D (2.78+, see bottom of page for Blender 2.49 and before) to jME3. Furthermore, it explains how you can create various typical game-related assets like "`Normal`" maps of high-poly models and "`Baked Lighting`" maps.