Small fixes 3

deployment/docker-compose.yaml

@@ -23,7 +23,10 @@ services:
         INSTALL_DOCLING: ${INSTALL_DOCLING:-false}
         # Bake the tesseract binary behind OCR_ENABLED=true (~35 MB): set
         # INSTALL_TESSERACT=true in ../.env or the shell (setup.sh does this
-        # when OCR is enabled). Off by default, like docling.
+        # when OCR is enabled). Off by default, like docling. Upgrading a
+        # deployment that already runs OCR_ENABLED=true with tesseract: add
+        # INSTALL_TESSERACT=true to ../.env before rebuilding, or scanned
+        # pages fail with an install hint.
         INSTALL_TESSERACT: ${INSTALL_TESSERACT:-false}
     env_file:
       - ../.env