diff --git a/README.md b/README.md
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+biner
+====
+
+The Simplest Interface Description Language for Binary Format
+
+## features
+
+- provides readable way to express binary format
+- generates pack/unpack function for C from biner file
+
+## requirements
+
+- flex
+- bison
+- cmake
+- gcc (generated codes uses GCC extension)
+
+## install
+
+1. add this repo to yours as submodule
+2. write the following code on your CMakeLists.txt
+
+```CMake
+add_subdirectory(path/to/biner)
+target_biner_sources(target-name
+  OUTPUT  ${CMAKE_CURRENT_BINARY_DIR}/generated
+  SOURCES
+    file1.biner
+    file2.biner
+)
+```
+
+Now `file1.biner.h` and `file2.biner.h` are generated under `${CMAKE_CURRENT_BINARY_DIR}/generated` directory.
+
+You can get an example from `test` directory.
+
+## license
+
+What The Fuck You Want To Public License
+
+## author
+
+falsycat
+
+- [portfolio](https://falsy.cat)
+- [twitter](https://twitter.com/falsycat)
+
+If you find something, please contact me at email address written in my portfolio.
diff --git a/TODO.TXT b/TODO.TXT
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-X parser
-X error handling (compiler message)
-X user-defined type resolving
-X make enum for generic types
-X constant resolving in expression
-X check if an expression is static/dynamic
-X enum support
-X constant support
-X conditional switching support
-X union support
-X C transpiler for unpacking
-X C transpiler for packing
-X setup tests
-X add bitmanip operators
-X handling of overflown or negative expression
-  release 1.0.0