Update README Why? section

Author: yyoncho

README.org

@@ -46,7 +46,7 @@
 
 ** Why?
    - ❤️ *Community Driven*
-   - 💎 *Fully featured* - supports LSP core and Language Server non-standard extensions
+   - 💎 *Fully featured* - supports *all* features in Language Server Protocol v3.14.
    - 🚀 *Easy to configure* - works out of the box and automatically upgrades if additional packages are present
    - 🌟 *Flexible* - could be configured as full-blown IDE with flashy UI or minimal distraction free
 ** Overview