Added vi help.

applications/lofar2/doc/prestudy/desp_howtools_erko.txt

@@ -401,7 +401,24 @@ Table:
 - in gvim replace \r --> nothing
 - in uex save new file as Linux, save as, menu edit/preferences/line end
 
-
+:w save
+:w .... save as
+:wq save+quit
+:q! quit without save
+x delete character
+dd delete line
+i insert text
+escape
+/....  search
+n next
+
+         k
+bcksp    |
+   h <--- ---> l
+         |
+         j
+
+         
 *******************************************************************************
 * Remote access
 *******************************************************************************