Improve website translations and favicons; disable push workflows

site/README.md

@@ -7,11 +7,14 @@ Run `python3 scripts/test_site.py` to check translations, links, metadata and la
 
 The root page follows the browser language, falling back to English. Language links
 use explicit locale paths and remember manual choices when browser storage is available.
-Arabic uses a right-to-left layout. Icons are exported from `assets/logo.svg`;
-update the PNG/ICO files in this directory when the logo changes.
+Arabic uses a right-to-left layout. The favicon uses the centered OCS lettering
+from `assets/logo.svg`, without details that disappear at small sizes. Export
+`favicon.svg` to PNG at 96, 180, 192 and 512 pixels and ICO at 16, 32, 48, 96 and
+256 pixels when it changes. Favicon URLs stay fixed for search engine crawlers.
 
 `workspace.png` and `modeling.png` are shared by the website and all README languages.
 The drawing screenshot also supplies the social preview; website image URLs change with their contents.
 
-GitHub Pages publishes website changes from `main` while building the app from the
-latest release. Each deployment records both sources separately.
+GitHub Pages runs on release publication, a call from the weekly release workflow,
+or a manual run. Commits and pushes do not start workflows. Deployments use website
+files from `main` and build the app from the release, recording both sources separately.