diff --git a/Makefile b/Makefile
index 8c939f54..76ff05fa 100644
--- a/Makefile
+++ b/Makefile
@@ -4,9 +4,9 @@ LAST_TAG_VERSION=$(shell git describe --abbrev=0 --tags | sed "s/^v//")
 bench:
 	rustup run nightly cargo bench --features bench
 run:
-	cargo run -- --debug --lint ./
+	cargo run -- --lint
 run\:json:
-	cargo run -- --lint --format json ./
+	cargo run -- --lint --format json
 build:
 	cargo build --release --target aarch64-apple-darwin
 	sudo ln -f target/aarch64-apple-darwin/release/autocorrect /usr/local/bin/autocorrect
@@ -14,7 +14,7 @@ test:
 	@cargo test --manifest-path autocorrect/Cargo.toml 
 	@cargo test
 test\:lint:
-	@cargo run -q -- --debug --lint tests/fixtures/*.fixed.*
+	@cargo run -q -- --lint tests/fixtures/*.fixed.*
 test\:bench:
 	tests/bench.sh
 test\:lint-json:
diff --git a/README.md b/README.md
index 44b2b7c2..bb7d2645 100644
--- a/README.md
+++ b/README.md
@@ -47,26 +47,28 @@ $ curl -sSL https://git.io/JcGER | bash
 after that, you will get `/usr/local/bin/autocorrect` command.
 
 ```bash
-AutoCorrect 1.0.0
+AutoCorrect
 Jason Lee <huacnlee@gmail.com
-Automatically add whitespace between CJK (Chinese, Japanese, Korean) and half-width characters (alphabetical letters,
-numerical digits and symbols).
+A linter and formatter for help you improve copywriting, to correct spaces, punctuations between CJK (Chinese, Japanese,
+Korean).
 
 USAGE:
     autocorrect [FLAGS] [OPTIONS] [file]...
 
 FLAGS:
+        --debug      Print debug message.
+        --type       Directly use set file type
         --fix        Automatically fix problems and rewrite file.
     -h, --help       Prints help information
         --lint       Lint and output problems.
     -V, --version    Prints version information
 
 OPTIONS:
-        --type <filetype>       Directly use set file type [default: ]
         --format <formatter>    Choose an output formatter. [default: diff]  [possible values: json, diff]
+        --threads <threads>     Number of threads, 0 - use number of CPU [default: 0]
 
 ARGS:
-    <file>...    Target filepath or dir for format
+    <file>...    Target filepath or dir for format [default: .]
 ```
 
 ## Usage
@@ -86,7 +88,7 @@ $ autocorrect text.txt
 
 $ autocorrect --fix text.txt
 $ autocorrect --fix zh-CN.yml
-$ autocorrect --fix ./
+$ autocorrect --fix
 ```
 
 #### Lint
@@ -106,7 +108,7 @@ $ autocorrect --lint text.txt
 You also can lint multiple files:
 
 ```bash
-$ autocorrect --lint .
+$ autocorrect --lint
 ```
 
 ### Ignore option
@@ -172,7 +174,7 @@ autocorrect:
   stage: build
   image: huacnlee/autocorrect:latest
   script:
-    - autocorrect --lint .
+    - autocorrect --lint
   # Enable allow_failure if you wants.
   # allow_failure: true
 ```
diff --git a/autocorrect-cli/src/main.rs b/autocorrect-cli/src/main.rs
index 4f575203..402a73fe 100644
--- a/autocorrect-cli/src/main.rs
+++ b/autocorrect-cli/src/main.rs
@@ -26,25 +26,25 @@ fn get_matches<'a>() -> clap::ArgMatches<'a> {
     .version(crate_version!())
     .about("A linter and formatter for help you improve copywriting, to correct spaces, punctuations between CJK (Chinese, Japanese, Korean).")
     .arg(
-      Arg::with_name("file").help("Target filepath or dir for format").takes_value(true).required(true).multiple(true)
+      Arg::with_name("file").help("Target filepath or dir for format").takes_value(true).default_value(".").multiple(true)
     )
     .arg(
-      Arg::with_name("fix").long("fix").help("Automatically fix problems and rewrite file.").required(false)
+      Arg::with_name("fix").long("fix").help("Automatically fix problems and rewrite file.")
     )
     .arg(
       Arg::with_name("lint").long("lint").help("Lint and output problems.")
     )
     .arg(
-        Arg::with_name("filetype").long("type").help("Directly use set file type").required(false)
+        Arg::with_name("filetype").long("type").help("Directly use set file type")
       )
     .arg(
-        Arg::with_name("formatter").long("format").help("Choose an output formatter.").default_value("diff").possible_values(&["json", "diff"]).required(false)
+        Arg::with_name("formatter").long("format").help("Choose an output formatter.").default_value("diff").possible_values(&["json", "diff"])
     )
     .arg(
         Arg::with_name("debug").long("debug").help("Print debug message.")
     )
     .arg(
-        Arg::with_name("threads").long("threads").help("Number of threads, 0 - use number of CPU").default_value("0").required(false)
+        Arg::with_name("threads").long("threads").help("Number of threads, 0 - use number of CPU").default_value("0")
     )
     .get_matches();
 }