patch 9.1.1029: the installer can be improved

Problem:  the installer can be improved
Solution: update the installer with the correct README and LICENSE
          files, improve the documentation, add a Makefile for the
          installer, update the Makefiles (RestorerZ)

fixes: #16378
closes: #16378

Signed-off-by: RestorerZ <restorer@mail2k.ru>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/Makefile

@@ -49,16 +49,6 @@ vimtutor.man: vimtutor.1
 xxd.man: xxd.1
 	nroff -man $? | sed -e s/.//g > $@
 
-uganda.nsis.txt : uganda.???
-	for dpn in $?; do \
-	  trg=$@; \
-          sed -e 's/[ 	]*\*.*\*//g' -e 's/vim:tw=[[:digit:]][[:digit:]]:.*//' \
-            $${dpn} | uniq > $${trg%txt}$${dpn##*.}; \
-	done
-# This files needs to be in dos fileformat for NSIS.
-	$(VIMPROG) -e -X -u NONE --cmd "set notitle noicon nocp noml viminfo=" \
-	  -c "argdo write ++ff=dos" -c "qa" uganda.nsis.???
-
 # Awk version of .txt to .html conversion.
 html: noerrors tags $(HTMLS)
 	@if test -f errors.log; then more errors.log; fi