Add toggle for glossaries ToC inclusion

chapters/mainmatter/base-features.tex

@@ -996,10 +996,13 @@ \section{Glossaries}
 In a format similar to normal bibliographies, all glossary entries are now managed
 using \texttt{*.bib} files.
 Each entry is processed by \ctanpackage{bib2gls} and put into an auxiliary file.
-From it, it reads and inserts all contents when \verb|\gls| and its many siblings
-are used.
+From it, \ctanpackage{glossaries-extra} reads and inserts all contents when \verb|\gls|
+and its many sibling commands are used.
 The framework for all of that, also printing of the glossary and nomenclature,
 is already taken care of for this document.
+In addition to printing the glossaries, they are also added to the table of contents.
+This behavior can be toggled using the \texttt{toc} package option flag,
+see the source code for more info.
 
 Traditionally, glossary packages are used for abbreviations.
 However, using \ctanpackage{glossaries-extra} this can be kicked into top gear.

cookbook.cls

@@ -1755,7 +1755,8 @@
  abbreviations,% Regular abbreviations/acronyms
  symbols,% Physical symbols
  index,% A regular book index at the end
- numbers% constants like Pi
+ numbers,% constants like Pi
+ toc=true,% Toggle inclusion in Table of Contents
 ]{glossaries-extra}% Also see https://tex.stackexchange.com/q/477658/120853
 
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