SDL: Sync SDL3 wiki -> header (1f088)

From 1f0884ffef4683189783b04aa91431f4a5c8f00a Mon Sep 17 00:00:00 2001
From: SDL Wiki Bot <[EMAIL REDACTED]>
Date: Tue, 21 May 2024 23:59:08 +0000
Subject: [PATCH] Sync SDL3 wiki -> header

---
 docs/README-documentation-rules.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/README-documentation-rules.md b/docs/README-documentation-rules.md
index 6f38094e2287c..f8e2e9e641325 100644
--- a/docs/README-documentation-rules.md
+++ b/docs/README-documentation-rules.md
@@ -309,6 +309,15 @@ without any further processing by wikiheaders, and changes go in both
 directions.
 
 
+## The wiki can have its own pages, too.
+
+If a page name isn't a symbol that wikiheaders sees in the headers, or a
+README in the source's `docs` directory, or a few other exceptions, it'll
+assume it's an unrelated wiki page and leave it alone. So feel free to
+write any wiki-only pages that make sense and not worry about it junking
+up the headers!
+
+
 ## Wiki categories are (mostly) managed automatically.
 
 The wiki will see this pattern as the last thing on a page and treat it as a