[git][ref] better items

Author: mrsrina

README.md

@@ -68,6 +68,11 @@ auto &my_frame = ekg::make<ekg::frame_t>(frame_template);
 
 ## Building
 
+EKG is C++17-based and is supported by:
+| - | GNU-MinGW-w64  
+| - | GNU-G++  
+| - | Clang++  
+
 Dependencies for building binary:  
 | - | [FreeType](https://freetype.org/)  
 | - | [GLEW](https://glew.sourceforge.net/)  
@@ -83,11 +88,6 @@ cmake -S . -B ./cmake-build -G Ninja -D CMAKE_BUILD_TYPE=Release
 cmake --build ./cmake-build
 ```
 
-Supported compilers:  
-| - | GNU-MinGW64 stable buildable  
-| - | GNU-G++ stable buildable  
-| - | Clang++ stable buildable  
-
 Supported video APIs:  
 | - | OpenGL 3.1~4.6  
 | - | OpenGL ES 3