Add manual index

doc/index.texi

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+\input texinfo
+@setfilename guile-knots
+
+
+@c HEADER
+@settitle Guile Knots
+@documentlanguage en
+@documentencoding UTF-8
+@afourpaper
+@c END HEADER
+
+
+
+@c MASTER MENU
+@node Top
+@top Overview
+
+Guile Knots is a library providing tools and patterns for programming
+with @url{https://github.com/wingo/fibers, Guile Fibers}.  Guile Knots
+provides higher level building blocks for writing programs using Guile
+Fibers, including managing code that can't run in a thread used by
+fibers.  Also included is a web server implementation using Fibers,
+which while being similar to the web server provided by Fibers, can
+provide some benefits in specific circumstances.
+
+@c END MASTER MENU
+
+
+@c TABLE OF CONTENTS
+@contents
+@c END TABLE OF CONTENTS
+
+
+@c CHAPTER: API
+@include api/index.texi
+@c END CHAPTER: API
+
+
+
+@c APPENDICES
+@node Version History
+@appendix Version History
+
+@table @dfn
+
+@item Version 0.Y.0, Month DD, 20YY
+@itemize
+@item
+No initial release has yet been made.
+@end itemize
+
+@end table
+
+
+
+@node Copying Information
+@appendix Copying Information
+
+Copyright © 2024, 2025 Christopher Baines <mail@@cbaines.net>
+
+This library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation; either version 3 of the
+License, or (at your option) any later version.
+
+@c END APPENDICES
+
+
+
+@c INDICES
+@node Concept Index
+@unnumbered Concept Index
+
+@printindex cp
+
+
+@node Data Type Index
+@unnumbered Data Type Index
+
+@printindex tp
+
+
+@node Procedure Index
+@unnumbered Procedure Index
+
+@printindex fn
+
+
+@node Variable Index
+@unnumbered Variable Index
+
+@printindex vr
+@c END INDICES
+
+
+@bye