diff --git a/docker/docker-compose/default/docker-compose.yml b/docker/docker-compose/default/docker-compose.yml
index ca65eacc..07c0f5c2 100644
--- a/docker/docker-compose/default/docker-compose.yml
+++ b/docker/docker-compose/default/docker-compose.yml
@@ -21,7 +21,7 @@ services:
     volumes:
       - "./pigallery2/config:/app/data/config" # CHANGE ME
       - "db-data:/app/data/db"
-      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' mean read-only
+      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' means read-only
       - "./pigallery2/tmp:/app/data/tmp" # CHANGE ME
     expose:
       - "80"
diff --git a/docker/docker-compose/pigallery2-only/docker-compose.yml b/docker/docker-compose/pigallery2-only/docker-compose.yml
index 523e03bf..94b9cfb8 100644
--- a/docker/docker-compose/pigallery2-only/docker-compose.yml
+++ b/docker/docker-compose/pigallery2-only/docker-compose.yml
@@ -8,7 +8,7 @@ services:
     volumes:
       - "./pigallery2/config:/app/data/config" # CHANGE ME
       - "db-data:/app/data/db"
-      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' mean read-only
+      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' means read-only
       - "./pigallery2/tmp:/app/data/tmp" # CHANGE ME
     ports:
       - 80:80
diff --git a/docker/docker-compose/with-mysql/docker-compose.yml b/docker/docker-compose/with-mysql/docker-compose.yml
index 020df438..6d6601c4 100644
--- a/docker/docker-compose/with-mysql/docker-compose.yml
+++ b/docker/docker-compose/with-mysql/docker-compose.yml
@@ -33,7 +33,7 @@ services:
     volumes:
       - "./pigallery2/config:/app/data/config" # CHANGE ME
       - "db-data:/app/data/db"
-      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' mean read-only
+      - "./pigallery2/images:/app/data/images:ro" # CHANGE ME, ':ro' means read-only
       - "./pigallery2/tmp:/app/data/tmp" # CHANGE ME
     expose:
       - "80"
diff --git a/src/common/config/public/ClientConfig.ts b/src/common/config/public/ClientConfig.ts
index d77fa68f..af7dae97 100644
--- a/src/common/config/public/ClientConfig.ts
+++ b/src/common/config/public/ClientConfig.ts
@@ -600,7 +600,7 @@ export class ClientPhotoConfig {
       name: $localize`Supported photo formats`,
       priority: ConfigPriority.underTheHood
     },
-    description: $localize`Photo formats that are supported.`,
+    description: $localize`Photo formats that are supported. Browser needs to support these formats natively. Also sharp (libvips) package should be able to convert these formats.`,
   })
   supportedFormats: string[] = ['gif', 'jpeg', 'jpg', 'jpe', 'png', 'webp', 'svg'];
 }