feat: transfer materials to objects

1.0.3:

- feat: add "Append Materials To Selected" to material submenu. Append materials to other selected GP objects if there aren't there.

README.md

@@ -73,6 +73,17 @@ Also Possible to copy whole selected layers.
 
 - Auto update : you have an updater in the addon preference tabs (use the [CGcookie addon updater](https://github.com/CGCookie/blender-addon-updater))
 
+
+**Palette management**
+
+In material submenu you have mutliple new entry:
+
+- Copy Materials To Selected : copy all material to other selected GP (difference with Ctrl+L > materials is that it doesn't erase materials, only append those that are not in other's materials stack)
+
+- Load/Save Json palette : Save/load materials externally to a json file from/to the active material stack.
+
+- Load Color palette : same as the load above exept it loads directly from a blend file (all the material that the blend contains)
+
 ### Where ?
 
 Panel in sidebar : 3D view > sidebar 'N' > Gpencil
@@ -101,6 +112,10 @@ Panel in sidebar : 3D view > sidebar 'N' > Gpencil
 
 ## Changelog:
 
+1.0.3:
+
+- feat: add "Append Materials To Selected" to material submenu. Append materials to other selected GP objects if there aren't there.
+
 1.0.2:
 
 - pref: Added option to disable always remap relative on save in addon-preference