Add docs for completion

README.md

@@ -1,20 +1,20 @@
 # PHP IntelliSense
 
-> **⚠ Work In Progress**
-
 [![Latest Release](https://vsmarketplacebadge.apphb.com/version-short/felixfbecker.php-intellisense.svg)](https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-intellisense) [![Installs](https://vsmarketplacebadge.apphb.com/installs/felixfbecker.php-intellisense.svg)](https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-intellisense) [![Rating](https://vsmarketplacebadge.apphb.com/rating-short/felixfbecker.php-intellisense.svg)](https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-intellisense) [![Build Status](https://travis-ci.org/felixfbecker/vscode-php-intellisense.svg?branch=master)](https://travis-ci.org/felixfbecker/vscode-php-intellisense) [![Dependency Status](https://gemnasium.com/felixfbecker/vscode-php-intellisense.svg)](https://gemnasium.com/felixfbecker/vscode-php-intellisense) [![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%207.0-8892BF.svg)](https://php.net/) [![Gitter](https://badges.gitter.im/felixfbecker/vscode-php-intellisense.svg)](https://gitter.im/felixfbecker/vscode-php-intellisense?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
 Advanced PHP IntelliSense for Visual Studio Code.
-In opposite to the included PHP IntelliSense and other PHP extensions, this uses an AST to parse the source code
-instead of relying on naive regular expression parsing.
-
 
 **Note: This is just the VS Code extension that spawns the actual language server. The language server itself is implemented purely in PHP [in its own repository](https://github.com/felixfbecker/php-language-server), all features need to be implemented there and all issues should be reported there.**
 
+## Installation
 You need at least PHP 7 installed for the extension to work. You can either add it to your PATH or set the `php.executablePath` setting. 
+I recommend to disable VS Code's built-in PHP IntelliSense by setting `php.suggest.basic` to `false` to avoid duplicate suggestions.
 
 ## Features
 
+### Completion
+![Completion search demo](images/completion.gif)
+
 ### Workspace symbol search
 ![Workspace symbol search demo](images/workspaceSymbol.gif)
 
@@ -40,7 +40,6 @@ You need at least PHP 7 installed for the extension to work. You can either add
 
 
 ## Todo
- - Autocompletion
  - Rename
  - Signature help