instructions, docs, tools: Export - setup-instance und How-to nennen auch die ganze KB, page_export-Docstring nennt die Index-Dateien (#217 close); 10.1.0-beta.22

Files changed:
- CHANGES.md
- VERSION
- docs/how-to/export-to-a-synced-folder.md
- instructions/setup-instance.md
- tools/chemenu/page_export.py

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

docs/how-to/export-to-a-synced-folder.md

@@ -1,8 +1,8 @@
 # Export to a synced folder
 
-Give a reader outside the repository a read-only version of part of `kb/`: the selected pages,
-written as files into a folder - typically one a sync client such as OneDrive uploads, so that a
-Microsoft 365 tenant can index them. The export is derived. It is regenerated from the committed
+Give a reader outside the repository a read-only version of part or all of `kb/`: the selected
+pages, written as files into a folder - typically one a sync client such as OneDrive uploads, so
+that a Microsoft 365 tenant can index them. The export is derived. It is regenerated from the committed
 pages on every run, nobody edits it, and nothing in it flows back into the wiki. What the settings
 look like: [configuration reference](../reference/configuration.md#export-to-a-folder).