update readme and add changelog

Author: bradlc

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+
+## 0.1.10
+
+- add syntax definitions for `@apply` and `config()`:
+
+  **Before:**
+
+  <img src="https://user-images.githubusercontent.com/2615508/44740655-ed02ee80-aaf2-11e8-8d3e-1075e0801fd7.png" alt="Syntax highlighting before update" width="345" />
+
+  **After:**
+
+  <img src="https://user-images.githubusercontent.com/2615508/44740606-cba20280-aaf2-11e8-92b8-42adbfe54c61.png" alt="Syntax highlighting after update" width="345" />

README.md

@@ -1,19 +1,33 @@
 # Tailwind CSS IntelliSense
 
-> Tailwind CSS class name completion for VS Code
+> [Tailwind CSS](https://tailwindcss.com/) class name completion for VS Code
 
 **[Get it from the VS Code Marketplace →](https://marketplace.visualstudio.com/items?itemName=bradlc.vscode-tailwindcss)**
 
-## HTML
+## Features
 
-<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/src/img/html.gif" alt="HTML autocompletion" width="750">
+### Markup
 
-Hover over a class name to preview the CSS:
+- class name suggestions, including support for Emmet
+- CSS preview when hovering over class names
+
+### CSS
+
+- class name suggestions when using `@apply`
+- suggestions when using the `config` helper
+- suggestions when using the `@screen` directive
+- improves syntax highlighting when using `@apply` and `config()`
+
+## GIFs
 
-<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/src/img/html-hover.gif" alt="HTML hover preview" width="750">
+### HTML
+
+<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/img/html.gif" alt="HTML autocompletion" width="750">
+
+Hover over a class name to preview the CSS:
 
-## CSS
+<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/img/html-hover.gif" alt="HTML hover preview" width="750">
 
-In CSS files you get autocompletions when using `@apply` and the `config()` helper.
+### CSS
 
-<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/src/img/css.gif" alt="CSS autocompletion" width="750">
+<img src="https://raw.githubusercontent.com/bradlc/vscode-tailwindcss/master/img/css.gif" alt="CSS autocompletion" width="750">