Added readme

README.md

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+## Binary Editor
+
+This is a very simple c library for reading and writing individual bits.
+
+#### Usage:
+
+First, you should initialize the input and output buffers with
+
+```
+setBuffer(BUF_IN, bufferToRead)
+setBuffer(BUF_OUT, bufferToWrite);
+```
+
+From here, you can read individual bits with `readBit()` or a whole byte with readByte(). For writing, use `writeBit()` and `writeByte()`.
+
+**Note**: The way writing works, it will not override something already in the buffer, instead only messing up data. Make sure to initialize your buffers to 0 for writing to work correctly.
+
+If you want to go back to a different part of a buffer, you can seek with
+
+`seekBuffer(BUF_IN or BUF_OUT, numInBits)`You can also get the current bit offest with `getBufferOffset(BUF_IN or BUF_OUT)`