diff --git a/README.md b/README.md
index 7bb7f3d..eae5718 100644
--- a/README.md
+++ b/README.md
@@ -22,11 +22,11 @@ $ nextword -h
 Nextword prints the most likely English words that follow the stdin sentence.
 
 Usage of /Users/moctane/go/bin/nextword:
-  -Greedy
+  -g
     	show as many result as possible
-  -candidate-num int
+  -c
     	max candidates number (default 100)
-  -data string
+  -d string
     	path to the data directory (default "/Users/moctane/Assets/nextword-data")
   -h	show this message
   -v	show version
@@ -46,10 +46,6 @@ Example:
 	output: "was would were went with will who wrote when wants ..."
 ```
 
-## Contributing
-
-Please feel free to send pull requests.
-
 ## License
 
 MIT
\ No newline at end of file
diff --git a/main.go b/main.go
index 5c500c5..167e596 100644
--- a/main.go
+++ b/main.go
@@ -10,17 +10,17 @@ import (
 )
 
 // Version (semantic)
-const Version = "0.0.1"
+const Version = "0.0.2"
 
 // environmental variable
 const nextwordDataPath = "NEXTWORD_DATA_PATH"
 
 // flags
 var versionFlag = flag.Bool("v", false, "show version")
-var dataPath = flag.String("data", os.Getenv(nextwordDataPath), "path to the data directory")
-var candidateNum = flag.Int("candidate-num", 100, "max candidates number")
+var dataPath = flag.String("d", os.Getenv(nextwordDataPath), "path to the data directory")
+var candidateNum = flag.Int("c", 10, "max candidates number")
 var helpFlag = flag.Bool("h", false, "show this message")
-var greedyFlag = flag.Bool("Greedy", false, "show as many result as possible")
+var greedyFlag = flag.Bool("g", false, "show as many result as possible")
 
 func main() {
 	if err := run(); err != nil {