Update annotation.rst

added more detailed info about LZ Excel export of markers

Docs/annotation.rst

@@ -28,6 +28,10 @@ Save your annotations with the "save" or "save as" buttons. The file format is .
 
 **Export to Excel**
 
+The markers will be listed 1,2,3,4, etc.. in the order you place them. In the example below, electrode tracks were mapped. In order to keep track of which marker belong to which electrode, you can asign a different color to each electrode and start placing the markers on your images in a systematic way e.g. (marker 1: yellow; marker 2:green, etc...).
+The coordinates for each markers are found under fx, fy, fz. Those coordinates can be copied and arranged in a notepad file as shown in the figure where you can assign a RGB code to the marker list.
+This notepad file can be pasted in MeshView for you to visualise your electrode tracks.
+
 .. image:: vertopal_f685c684f9f741c382a00fa63533872a/media/image5.png
    :width: 6.30139in
    :height: 2.59306in
@@ -37,4 +41,14 @@ Save your annotations with the "save" or "save as" buttons. The file format is .
 
 The saved .lz file can also be visualised in the 3D viewer, MeshView (https://meshview-for-brain-atlases.readthedocs.io/en/latest/index.html) which is also available as a webapp in the EBRAINS collaboratory.
 
+Read more about MeshView here: https://meshview-for-brain-atlases.readthedocs.io/en/latest/ 
+
+.. image:: vertopal_f685c684f9f741c382a00fa63533872a/media/image10.png
+   :width: 6.3in
+   :height: 2.88611in
+
+
+.. image:: vertopal_f685c684f9f741c382a00fa63533872a/media/image11.png
+   :width: 6.3in
+   :height: 2.88611in