Update README.md

README.md

@@ -12,10 +12,27 @@ A bare-minimal, yet industrial-strength C++ 20 library for reading, writing, and
 
 * Modern C++ (20)
 * Simple, well-documented API.
+* Included parsing, validation, and manipulation tool for the CLI.
 * Static Library
 * GCC and MSVC support
 * Tested on Fedora Linux and Windows 10.
 
+## API Overview
+
+```cpp
+
+tuple<value, string> parse(string);
+string deparse(value, string whitespace = "");
+
+struct json::value {...};
+struct json::string {...};
+struct json::number {...};
+struct json::boolean {...};
+struct json::object {...};
+struct json::array {...};
+
+```
+
 
 ## Contributing