update readme

Author: sumneko

README.md

@@ -14,7 +14,7 @@ The Lua language server provides various language features for Lua to make devel
 
 ## Features
 
-- ⚙️ Supports `Lua 5.4`, `Lua 5.3`, `Lua 5.2`, `Lua 5.1`, and `LuaJIT`
+- ⚙️ Supports `Lua 5.5`, `Lua 5.4`, `Lua 5.3`, `Lua 5.2`, `Lua 5.1`, and `LuaJIT`
 - 📄 Over 20 supported [annotations](https://luals.github.io/wiki/annotations/) for documenting your code
 - ↪ Go to definition
 - 🦺 Dynamic [type checking](https://luals.github.io/wiki/type-checking/)
@@ -65,6 +65,8 @@ The install methods below are maintained by community members.
 - `zh-cn` 🇨🇳
 - `zh-tw` 🇹🇼
 - `pt-br` 🇧🇷
+- `ja-jp` 🇯🇵
+- `es-419` 🇪🇸
 
 
 > **Note**