added some doc

LibAutomaton/matrix.h

@@ -105,9 +105,26 @@ bool SetCellValue(Matrix matrix, int ColPos, int RowPos, bool value);
 */
 bool GetCellValue(Matrix matrix, int ColPos, int RowPos);
 
-
+/**
+*Set the number of columns and rows of the matrix and returns it
+*
+*@param matrix the Matrix 
+*@param nbCols an int indicating the number of columns
+*@param nbRows an int indicating the number of rows
+*
+*@return the matrix
+*
+*/
 Matrix SetMatrixDim(Matrix matrix,int nbCols,int nbRows);
 
+/**
+*Basically print the Matrix in the standard output
+*
+*@param matrix the Matrix 
+*
+*@return void
+*
+*/
 void BasicPrintMatrix(Matrix matrix);
 
 bool RecursiveFreeCol(Matrix matrix, cellElement * elem);