[gspell] docs: building with autoconf-archive 2021 or 2022, both work

[Sébastien Wilmet <swilmet src gnome org>]

commit a47e5b6cfe06d66a5f5036586107cb88530d90ff
Author: Sébastien Wilmet <swilmet informatique-libre be>
Date:   Thu Apr 14 17:43:04 2022 +0200

    docs: building with autoconf-archive 2021 or 2022, both work
    
    gnome-build-meta currently has autoconf-archive 2021.02.19, so I've
    tested with both versions.

 docs/more-information.md | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/docs/more-information.md b/docs/more-information.md
index 5b170a3..b1d3105 100644
--- a/docs/more-information.md
+++ b/docs/more-information.md
@@ -17,6 +17,9 @@ Dependencies
 - Enchant
 - [ICU](http://site.icu-project.org/)
 
+If building from Git:
+- autoconf-archive (version 2021.02.19 or 2022.02.11, both work)
+
 Notes for packagers
 -------------------