Add quiet mode option (-q/--quiet)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rflatten"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2024"
 description = "Flatten subdirectories by moving all files to the root directory"
 license = "GPL-3.0"

README.md

@@ -1,3 +1,5 @@
+`cargo install rflatten`
+
 ```
 RFLATTEN(1)                      User Commands                     RFLATTEN(1)
 
@@ -30,6 +32,10 @@ OPTIONS
               Skip confirmation prompt and proceed immediately with the
               flatten operation.
 
+       -q, --quiet
+              Quiet mode - suppress all output except errors. Confirmation
+              prompt is automatically skipped (same behavior as --yes).
+
        -i, --include <INCLUDE>
               Include only directories that begin with any of these values.
               Accepts comma-separated values. Uses case-insensitive prefix
@@ -50,6 +56,9 @@ EXAMPLES
        Skip confirmation prompt:
               rflatten -y /path/to/directory
 
+       Quiet mode (no output except errors):
+              rflatten -q /path/to/directory
+
        Only flatten first level subdirectories:
               rflatten --depth 1 /path/to/directory