更改为lib

README.md

@@ -1,4 +1,26 @@
-MD5
-===
-implementation of the MD5 algorithm written in C
+# simple-md5-lib
 
+Simple C lib of the MD5 algorithm
+
+# Install
+
+```bash
+git clone https://github.com/fumiama/simple-md5-lib.git
+cd simple-md5-lib
+mkdir build
+cd build
+cmake ..
+make
+make install
+```
+
+# Usage
+
+1. Include `simplemd5.h` in your c program.
+```c
+#include <simplemd5.h>
+```
+2. Call `md5` function. Don't forget to `free` the returned digest.
+```c
+uint8_t* md5(const uint8_t *data, size_t data_len);
+```