Edit.md

@@ -127,6 +127,20 @@ Note that this action will be applied to all the time frames of the movie, and c
     <img width="80%" src="uploads/0263813bb0f8d9e60c57aa87fac7a01c/remove_border.png">
 </p>
 
+## Remove mini cells
+
+**Allows to remove all cells smaller than the chosen threshold.** The cell size is its area in pixels (number of pixels inside the cell). When this button is clicked, all frames will be treated.
+
+## Cell inside another: merge
+
+**Merge all cell fully included in another one into it.**
+
+One recurrent segmentation error can be a large cell wrongly split in two cells, with one (false split) inside the other (correct one). This kind of error occurs when there is a large bright spot inside a cell, as for example into SOP (Sensory Organ Precursor) cells. 
+
+<p align="center" width="100%">
+    <img width="80%" src="uploads/e45a313e28305ae6844e24bac17cdbc5/mergeInside.png">
+</p>
+
 ## Sanity check
 
 **This option performs several checks to ensure that the files follows EpiCure's standards and can fix some errors.**