patch 8.1.1280: remarks about functionality not in Vi clutters the help

Problem:    Remarks about functionality not in Vi clutters the help.
Solution:   Move all info about what is new in Vim or already existed in Vi to
            vi_diff.txt.  Remove {not in Vi} remarks. (closes #4268) Add
            "noet" to the help files modeline.  Also include many other help
            file improvements.
diff --git a/runtime/doc/hebrew.txt b/runtime/doc/hebrew.txt
index f2c3a3d..8612c0b 100644
--- a/runtime/doc/hebrew.txt
+++ b/runtime/doc/hebrew.txt
@@ -1,4 +1,4 @@
-*hebrew.txt*    For Vim version 8.1.  Last change: 2007 Jun 14
+*hebrew.txt*    For Vim version 8.1.  Last change: 2019 May 05
 
 
 	   VIM REFERENCE MANUAL    by Ron Aaron (and Avner Lottem)
@@ -10,10 +10,7 @@
 Lottem. <alottem at gmail dot com>  Ron Aaron <ron at ronware dot org> is
 currently helping support these features.
 
-{Vi does not have any of these commands}
-
-All this is only available when the |+rightleft| feature was enabled at
-compile time.
+{only available when the |+rightleft| feature was enabled at compile time}
 
 
 Introduction