Update readme

README.md

@@ -1,6 +1,53 @@
 # CKEditor 5 mathematical feature
 
-This package is the best TeX-based math plugin for CKEditor 5. You can use it to insert, edit and view mathematical equation / formulas. This plugin supports MathJax, KaTeX and custom typesetting engines.
+This is the best TeX-based mathematical plugin for CKEditor 5. You can use it to insert, edit and view mathematical equation and formulas. This plugin supports MathJax, KaTeX and custom typesetting engines.
+
+## Demo (todo)
+[Link to classic editor demo](https://www.example.com)
+[Link to inline editor demo](https://www.example.com)
+
+## Installation
+Install plugin with NPM or Yarn
+`npm install ckeditor5-math --save-dev`
+
+Add import into ckeditor.js file
+
+```js
+import Mathematics from 'ckeditor5-math/src/math';
+```
+
+Add it to builtinPlugins
+
+```js
+InlineEditor.builtinPlugins = [
+	// ...
+	Mathematics,
+	// ...
+];
+```
+
+__Add math button to toolbar__ and optional math config to default config
+
+```js
+InlineEditor.defaultConfig = {
+	toolbar: {
+		items: [
+			// ...
+			'math',
+			// ...
+		]
+	},
+	// ...
+	math: {
+		engine: 'mathjax',
+		outputType: 'script',
+		forceOutputType: false
+	},
+	// ...
+};
+```
+### Copying plugin's theme for Lark
+Copy __theme/ckeditor5-link__ folder from [https://github.com/isaul32/ckeditor5-theme-lark](https://github.com/isaul32/ckeditor5-theme-lark) to your lark theme repository fork.
 
 ## Supported input and output formats
 Supported input and output formats are:
@@ -21,7 +68,7 @@ Supported input and output formats are:
 - Tested by using version __0.11.0__
 - Doesn't support preview feature because __.ck-reset_all *__ css rules from ckeditor5-ui and ckeditor5-theme-lark breaks it.
 ### Custom
-It's possible with _engine: (__equation__, __element__, __display__) => { ... }_ math config.
+It's possible to implement with _engine: (__equation__, __element__, __display__) => { ... }_ math config.
 - __equation__ is equation in TeX format without delimiters
 - __element__ is DOM element reserved for rendering
 - __display__ is boolean. Typesetting should be inline when false
@@ -34,10 +81,16 @@ InlineEditor.defaultConfig = {
     math: {
         engine: 'mathjax', // or katex or function (equation, element, display) => { ... }
         outputType: 'script', // or span
-        forceOutputType: false
+        forceOutputType: false // forces output to use outputType
     }
     // ...
 }
 ```
 ## Styles
-- Styles requires PostCSS like offical CKEditor plugins
+- Styles requires PostCSS like offical CKEditor plugins
+- 
+## Todo
+- AutoMath like AutoMediaEmbed
+- Convert equation images to mathtex when paste from word
+- Fix KaTex preview
+- Make better way import lark theme for plugin