short description, example, requirement, todo, license.

README.md

@@ -1,4 +1,52 @@
 mruby-socket
 ============
 
-socket module for mruby
+"mruby-socket" mrbgem provides BSD socket interface for mruby.
+API is compatible with CRuby's "socket" library.
+
+
+## Example
+```sh
+% vi kame.rb
+s = TCPSocket.open("www.kame.net", 80)
+s.write("GET / HTTP/1.0\r\n\r\n")
+puts s.read
+s.close
+
+% mruby kame.rb
+HTTP/1.1 200 OK
+Date: Tue, 21 May 2013 04:31:30 GMT
+...
+```
+
+## Requirement
+- system must have RFC3493 basic socket interface
+- and some POSIX API...
+
+## TODO
+- add missing methods
+- write more tests
+- fix possible descriptor leakage (see XXX comments)
+
+
+## License
+
+Copyright (c) 2013 Internet Initiative Japan Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a 
+copy of this software and associated documentation files (the "Software"), 
+to deal in the Software without restriction, including without limitation 
+the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the 
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+DEALINGS IN THE SOFTWARE.