chore: update readme

Author: aminya

README.md

@@ -1,19 +1,32 @@
 # atom-ide-javascript
 
+JavaScript support for Atom IDE.
+
 ![Build Status (Github Actions)](https://github.com/atom-ide-community/atom-ide-javascript/workflows/CI/badge.svg)
 [![Dependency Status](https://david-dm.org/atom-ide-community/atom-ide-javascript.svg)](https://david-dm.org/atom-ide-community/atom-ide-javascript)
 [![apm](https://img.shields.io/apm/dm/atom-ide-javascript.svg)](https://github.com/atom-ide-community/atom-ide-javascript)
 [![apm](https://img.shields.io/apm/v/atom-ide-javascript.svg)](https://github.com/atom-ide-community/atom-ide-javascript)
 
 ## Features
+`atom-ide-javascript` provides many features. It combines the features of `atom-typescript`, `eslint-linter`, and many more.
 
--
+- Autocomplete
+- Linting (TypeScript, Eslint, etc)
+- Type information on hover
+- Goto Declaration
+- Find References
+- Semantic view
+- Block comment and uncomment
+- Rename refactoring
+- Common Snippets
+- Alternative to symbols-view
 
 ## Usage
+Just install and enjoy.
 
 ## Roadmap
+This is in the early stage of development. In the future releases, the less relevant typescript errors such as missing declaration files will be suppressed.
 
 ## Contributing
-
 - Let me know if you encounter any bugs.
 - Feature requests are always welcome.