doc ({About=>Using} TAME): {about=>usage.tex}

* doc/Makefile.am (tame_TEXINFOS): {about=>usage}.texi.
* doc/tame.texi: Include {about=>usage}.texi
* doc/about.texi: Rename file.
* doc/usage.texi: New file (renamed from about).

doc/Makefile.am

@@ -27,7 +27,7 @@ stylesheets := $(shell find "$(path_src)" \
 stexi       := $(stylesheets:.xsl=.texi)
 
 info_TEXINFOS = tame.texi
-tame_TEXINFOS = about.texi macros.texi preproc.texi license.texi \
+tame_TEXINFOS = usage.texi macros.texi preproc.texi license.texi \
                 config.texi $(stexi) tame.css
 
 MAKEINFOHTML=$(MAKEINFO) --html --css-include tame.css

doc/tame.texi

@@ -62,7 +62,7 @@ Free Documentation License".
 @end ifnottex
 
 @menu
-* About TAME::        History of TAME and how to use it
+* Using TAME::        History of TAME and how to use it
 * Preprocessor::      Metaprogramming system
 * Dependency Graph::  Dependency processing and flow analysis
 * Symbol Table::      Lookup table for all objects
@@ -78,7 +78,7 @@ Free Documentation License".
 @end ifnottex
 
 
-@include about.texi
+@include usage.texi
 @include preproc.texi
 
 @include src/graph.texi

doc/usage.texi

@@ -7,8 +7,8 @@
 @c    A copy of the license is included in the section entitled ``GNU Free
 @c    Documentation License''.
 
-@node About TAME
-@chapter About TAME
+@node Using TAME
+@chapter Using TAME
 @tame{} is The Adaptive Metalanguage,
   a programming language and system of tools designed to aid in the
   development; understanding; and maintenance of systems performing