`doc/lispref' holds the source code for the Emacs Lisp reference manual.
`doc/lispintro' holds the source code for the Introduction to Programming
in Emacs Lisp manual.
-`msdos' holds configuration files for compiling Emacs under MSDOG.
+`msdos' holds configuration files for compiling Emacs under MS-DOS.
`nextstep' holds instructions and some other files for compiling the
Nextstep port of Emacs, for GNUstep and Mac OS X Cocoa.
`nt' holds various command files and documentation files that pertain