Update README.md

Signed-off-by: Minsoo Choo <minsoochoo0122@proton.me>

README.md

@@ -1,4 +1,7 @@
-Lutok is a lightweight C++ API library for Lua.
+Welcome to the Kyua project!
+============================
+
+Lutok is a **lightweight C++ API library** for Lua.
 
 Lutok provides thin C++ wrappers around the Lua C API to ease the
 interaction between C++ and Lua.  These wrappers make intensive use of
@@ -19,9 +22,7 @@ please refer to the following other documents:
 
 * AUTHORS: List of authors and contributors to this project.
 * COPYING: License information.
-* INSTALL: Compilation and installation instructions.
-* NEWS: List of major changes between formal releases.
-
-For general project information, please visit:
+* INSTALL.md: Compilation and installation instructions.
+* NEWS.md: List of major changes between formal releases.
 
-    https://github.com/freebsd/lutok/
+For general project information, please visit [Lutok on GitHub](https://github.com/freebsd/lutok/)