Update doc

Author: ota-meshi

README.md

@@ -1,6 +1,7 @@
 # Introduction
 
-`@ota-meshi/eslint-plugin-svelte` is ESLint plugin for Svelte using AST.  
+`@ota-meshi/eslint-plugin-svelte` is ESLint plugin for Svelte.  
+It provides many unique check rules by using the template AST.  
 You can check on the [Online DEMO](https://ota-meshi.github.io/eslint-plugin-svelte/playground/).
 
 ::: **_WORKS IN PROGRESS_** :::
@@ -18,7 +19,8 @@ You can check on the [Online DEMO](https://ota-meshi.github.io/eslint-plugin-sve
 
 ## :name_badge: What is this plugin?
 
-An experimental ESLint plugin using [svelte-eslint-parser].
+ESLint plugin for Svelte.  
+It provides many unique check rules using the AST generated by [svelte-eslint-parser].
 
 ### ❓ Why?
 

docs/README.md

@@ -1,6 +1,7 @@
 # Introduction
 
-`@ota-meshi/eslint-plugin-svelte` is ESLint plugin for Svelte using AST.  
+`@ota-meshi/eslint-plugin-svelte` is ESLint plugin for Svelte.  
+It provides many unique check rules by using the template AST.  
 You can check on the [Online DEMO](./playground/README.md).
 
 ::: **_WORKS IN PROGRESS_** :::
@@ -18,7 +19,8 @@ You can check on the [Online DEMO](./playground/README.md).
 
 ## :name_badge: What is this plugin?
 
-An experimental ESLint plugin using [svelte-eslint-parser].
+ESLint plugin for Svelte.  
+It provides many unique check rules using the AST generated by [svelte-eslint-parser].
 
 ### ❓ Why?
 

docs/rules/prefer-class-directive.md

@@ -34,6 +34,10 @@ This rule aims to replace a class with ternary operator with the class directive
 
 </eslint-code-block>
 
+You cannot enforce this style by using [prettier-plugin-svelte]. That is, this rule does not conflict with [prettier-plugin-svelte] and can be used with [prettier-plugin-svelte].
+
+[prettier-plugin-svelte]: https://github.com/sveltejs/prettier-plugin-svelte
+
 ## :wrench: Options
 
 Nothing.

docs/rules/spaced-html-comment.md

@@ -32,6 +32,10 @@ This rule will enforce consistency of spacing after the start of a comment `<!--
 
 </eslint-code-block>
 
+You cannot enforce this style by using [prettier-plugin-svelte]. That is, this rule does not conflict with [prettier-plugin-svelte] and can be used with [prettier-plugin-svelte].
+
+[prettier-plugin-svelte]: https://github.com/sveltejs/prettier-plugin-svelte
+
 ## :wrench: Options
 
 ```json