Finish README and do some correct

README.md

@@ -1,3 +1,42 @@
 # ftrans
 
-ftrans is a simple file translator for LAN
+ftrans -- A simple file transmitter program
+
+Introducing
+
+ftrans is designed in order to transmit one single file from a machine
+to another.ftrans's design target is a lightweight,quick-to-use and
+extremly simple file transmitter so it doesn't consider other things
+like safety.
+
+	usage: main.py [-h] [-s SENDTO] [-r] [-f FILE] [-b BLOCK_SIZE] [-t TIMEOUT]
+               [-i]
+
+	optional arguments:
+	  -h, --help            show this help message and exit
+	  -s SENDTO, --sendto SENDTO
+                        specify receiver's ip address
+	  -r, --receive         receive file
+	  -f FILE, --file FILE  the path of to-be-transmitted file
+	  -b BLOCK_SIZE, --block-size BLOCK_SIZE
+	                        set transmitting block size
+	  -t TIMEOUT, --timeout TIMEOUT
+	                        set time out value by seconds
+	  -i, --info            show license and author information
+
+License
+
+	Copyright 2015 Zumium <[email protected]>
+
+	ftrans is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	ftrans is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with ftrans.  If not, see <http://www.gnu.org/licenses/>.

ftrans/main.py

@@ -28,8 +28,8 @@ def main():
 	parser=argparse.ArgumentParser()
 	parser.add_argument('-s','--sendto',help="specify receiver's ip address")
 	parser.add_argument('-r','--receive',help='receive file',action='store_true')
-	parser.add_argument('-f','--file',help='the path of to-be-transforred file')
-	parser.add_argument('-b','--block-size',help='set internet transfor block size')
+	parser.add_argument('-f','--file',help='the path of to-be-transmitted file')
+	parser.add_argument('-b','--block-size',help='set transmitting block size')
 	parser.add_argument('-t','--timeout',type=int,help='set time out value by seconds')
 	parser.add_argument('-i','--info',help='show license and author information',action='store_true')
 	args=parser.parse_args()