Update README.md

Add a note about:
#109

README.md

@@ -24,15 +24,15 @@ A simple C++ library for terminal based user interface.
    [[1]](https://hackernoon.com/building-reactive-terminal-interfaces-in-c-d392ce34e649?gi=d9fb9ce35901)
    and [React](https://reactjs.org/)
  * Simple and elegant syntax (in my opinion).
- * Support for [UTF8](https://en.wikipedia.org/wiki/UTF-8) and [fullwidth chars](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) (→ 测试)
+ * Support for [UTF8](https://en.wikipedia.org/wiki/UTF-8) and [fullwidth chars](https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms) (→ 测试). (% [except combining characters](https://github.com/ArthurSonzogni/FTXUI/issues/109))
  * No dependencies.
- * Cross platform (mostly). Linux (main target), Windows (experimental), Mac.
+ * Cross platform (mostly). Linux/mac (main target), Windows (experimental).
  * Keyboard & mouse navigation.
 
 ## Operating systems
+- [![linux-emscripten][badge.linux-emscripten]][link.linux-emscripten]
 - [![linux-gcc][badge.linux-gcc]][link.linux-gcc]
 [![linux-clang][badge.linux-clang]][link.linux-clang]
-[![linux-emscripten][badge.linux-emscripten]][link.linux-emscripten]
 - [![windows-msvc][badge.windows-msvc]][link.windows-msvc]
 - [![mac-clang][badge.mac-clang]][link.mac-clang]