fibers doc: fix typo

[Dmitry Polyakov]

Fiber's README tells me to send this path here, IIUC:
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Mailing List: `guile-user@gnu.org`
--8<---------------cut here---------------end--------------->8---

>From 0a2639457a6308e641e09eb00aaa7dcb4eed5dba Mon Sep 17 00:00:00 2001
From: Dmitry Polyakov <liltechdude@gmail.com>
Date: Sat, 15 Oct 2022 16:42:05 +0500
Subject: [PATCH] doc: fix typo

* fibers.texi (Concurrent Web Server): fix typo
---
 fibers.texi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fibers.texi b/fibers.texi
index 6c82fb9..5f48af0 100644
--- a/fibers.texi
+++ b/fibers.texi
@@ -1383,9 +1383,9 @@ be able to not only the input and output running 
concurrently, but
 also handlers too.
 
 For this reason, Fibers includes a simple standalone web server that
-uses Guile's Guile's HTTP facilities, but not its web server
-framework.  To run a standalone web server, use the @code{(fibers web
-server)} module:
+uses Guile's HTTP facilities, but not its web server framework.  To
+run a standalone web server, use the @code{(fibers web server)}
+module:
 
 @example
 (use-modules (fibers web server))

base-commit: 19dbc8d3e3864a5612ea5b291280ebf7b42ea644
-- 
2.38.0