Add README.md, COPYING, update gitignore

.gitignore

@@ -3,3 +3,6 @@
 
 # Autosave
 *.autosave
+
+# Build Dir
+[Bb]uild/

COPYING

@@ -0,0 +1,26 @@
+Redistribution and use in source and binary forms, with
+or without modification, are permitted provided that the
+following conditions are met:
+
+1. Redistributions of source code must retain this list
+   of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce this
+   list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the
+   distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.

README.md

@@ -0,0 +1,70 @@
+# TouHou Player
+
+TouHou BGM player for all platform.
+
+## Usage
+
+No need for config. Drag the TouHou game program into `thplayer` main window, or click the **Load** button and choose the game folder. `thplayer` will automatically load songs and then it's ready for use!
+
+## Support game versions
+
+The Touhou game versions we support are: 
+
+th07, th08, th09, th10, th11, th12, th13, th14, th15, th16
+th095, th125, th128, th143
+
+This is all made possible by the [thpatch/thtk](https://github.com/thpatch/thtk/) project. Thanks!
+
+## Build
+
+### Build using `qmake`
+
+You can choose to build TouHou Player using `qmake` normally.
+
+``` shell
+# Clone the repo
+git clone --recurse-submodules https://github.com/BearKidsTeam/thplayer.git
+# Create a build folder
+mkdir ./thplayer/build && cd $_
+# Build it
+qmake ../thplayer.pro && make && make clean
+```
+
+After that, you'll get the runnable binary inside the build folder. Enjoy!
+
+### Build manually
+
+To build it manually, get Qt open-source version from [qt.io](https://www.qt.io/download-open-source/) or from your package manager， install it and open `thplayer.pro` using QtCreator, and build it as you wish! 
+
+## License
+
+### BSD 2-Clause License
+
+``` plain
+Redistribution and use in source and binary forms, with
+or without modification, are permitted provided that the
+following conditions are met:
+
+1. Redistributions of source code must retain this list
+   of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce this
+   list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the
+   distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+```