chore(doc): update readme

Author: s1n7ax

README.md

@@ -1,50 +1,10 @@
-# nvim-java-core
+# :coffee: nvim-java-core
 
 ![Neovim](https://img.shields.io/badge/NeoVim-%2357A143.svg?&style=for-the-badge&logo=neovim&logoColor=white)
 ![Lua](https://img.shields.io/badge/lua-%232C2D72.svg?style=for-the-badge&logo=lua&logoColor=white)
 ![Java](https://img.shields.io/badge/java-%23ED8B00.svg?style=for-the-badge&logo=openjdk&logoColor=white)
 ![Gradle](https://img.shields.io/badge/Gradle-02303A.svg?style=for-the-badge&logo=Gradle&logoColor=white)
 ![Apache Maven](https://img.shields.io/badge/Apache%20Maven-C71A36?style=for-the-badge&logo=Apache%20Maven&logoColor=white)
 
-No need to put up with [jdtls](https://github.com/eclipse-jdtls/eclipse.jdt.ls) nonsense anymore.
-Just install and start writing `public static void main(String[] args)`.
-
-## Features
-
-:white_check_mark: are supported features. :x: are pending features.
-
-- :white_check_mark: Diagnostics & Auto Completion
-- :white_check_mark: Automatic [DAP](https://github.com/mfussenegger/nvim-dap) debug configuration
-- :x: Running tests
-
-## Why
-
-- Uses [nvim-lspconfig]() to setup `jdtls`
-- Uses `jdtls` and auto loads `jdtls` plugins from [mason.nvim](https://github.com/williamboman/mason.nvim) (If they are installed)
-  - Supported plugins are,
-    - `lombok` (mason `jdtls` package contains the lombok jar. So no need to installed it separately)
-    - `java-test`
-    - `java-debug-adapter`
-- Typed & documented APIs
-- No callback hells I [promise](https://github.com/pyericz/promise-lua)
-
-## How to Use
-
-```lua
-local java = require('java-core')
-local dap = require("java.dap")
-
--- update dap config on attach event
-dap.setup_dap_on_attach()
-
-require('lspconfig').jdtls.setup(java.get_config())
-
-vim.api.nvim_create_autocmd('LspAttach', {
-  callback = function(args)
-		local buffer = args.buf
-
-		-- add your language server keymaps here
-	end,
-	group = vim.api.nvim_create_augroup('LSP Keymaps', {}),
-})
-```
+This is a sub project of [nvim-java](https://github.com/nvim-java/nvim-java). Please refer the
+[README](https://github.com/nvim-java/nvim-java) in the main repository.