Update Matrix rooms (#62)

matrix.md

@@ -101,7 +101,7 @@ Some rooms are designated as [NSFW]. Adult focused media is allowed to be posted
 
 - [#stash-scrapers:unredacted.org](https://matrix.to/#/#stash-scrapers:unredacted.org){:target="_blank"} - (bridged) - Metadata scraping, curation and automation techniques
 - [#stash-plugins:unredacted.org](https://matrix.to/#/#stash-plugins:unredacted.org){:target="_blank"} - (bridged) - Discussions loosely related to Stash plugins and plugin API
-- [#stash-theming:unredacted.org](https://matrix.to/#/#stash-plugins:unredacted.org){:target="_blank"} - (bridged) - Discussions related to Stash theming and custom CSS
+- [#stash-theming:unredacted.org](https://matrix.to/#/#stash-plugins:unredacted.org){:target="_blank"} - [NSFW] - (bridged) - Discussions related to Stash theming and custom CSS
 - [#stash-ai-projects-feed-the-machine:unredacted.org](https://matrix.to/#/#stash-ai-projects-feed-the-machine:unredacted.org){:target="_blank"} - [NSFW] - (bridged) - Discussions loosely connected to AI
 - [#stash-ai-tagging:unredacted.org](https://matrix.to/#/#stash-ai-tagging:unredacted.org){:target="_blank"} - [NSFW] - (bridged) - AI in metadata tagging
 - [#stash-funscripts:unredacted.org](https://matrix.to/#/#stash-funscripts:unredacted.org){:target="_blank"} - (bridged) - Discussions and development related to funcscrips and interactivity