Subject: Wrong link at the "further reading" section of doc.

From: slbtty <[email-masked]>
Date: Mon, 13 Sep 2021 00:13:22 -0400

Dorai Sitaram’s online Scheme tutorial, Teach Yourself Scheme in
Fixnum Days, is no longer at the link as indicated by current guile
doc.

The new link is https://ds26gte.github.io/tyscheme/index.html

Link to the wrong guile doc ->
https://www.gnu.org/software/guile/manual/html_node/Further-Reading.html#Further-Reading