[ACS-5520] add eslint-angular README, rephrase rule documentation

docs/eslint-angular/rules/use-none-component-view-encapsulation.md

@@ -7,11 +7,12 @@ Last reviewed: 2023-05-23
 
 # [Use none component view encapsulation](../../../lib/eslint-angular/src/rules/use-none-component-view-encapsulation/use-none-component-view-encapsulation.ts "Defined in use-none-component-view-encapsulation.ts")
 
-Custom ESLint rule which check if component uses ViewEncapsulation.None. It has been implemented because None encapsulation makes themes styling easier.
-It also allows to autofix.
+Custom ESLint rule that requires components to use ViewEncapsulation.None. It has been implemented because None encapsulation makes themes styling easier.
+This rule allows autofix.
 
 ## Basic Usage
-Put this rule in eslintrc.json in rules. 
+
+Put this rule in `.eslintrc.json` in `rules` section. 
 
 ```json
 {

lib/eslint-angular/README.md

@@ -0,0 +1,42 @@
+# Alfresco ESlint Angular Library
+
+Contains custom ESlint rules for Angular.
+
+<!-- markdown-toc start - Don't edit this section.  npm run toc to generate it-->
+
+<!-- toc -->
+
+- [Documentation](#documentation)
+- [Prerequisites](#prerequisites)
+- [Install](#install)
+- [Usage](#usage)
+- [License](#license)
+
+<!-- tocstop -->
+
+<!-- markdown-toc end -->
+
+## Documentation
+
+See the [ADF ESlint Angular](../../docs/README.md#eslint-angular-api) section of the [docs index](../../docs/README.md)
+for all available documentation on this library.
+
+## Prerequisites
+
+This library doesn't require any additional software. Just install it with `npm` command from Install section below.
+
+## Install
+
+```sh
+npm install @alfresco/eslint-plugin-eslint-angular
+```
+
+## Usage
+
+If you want to add your own custom ESlint rules for Angular, make sure you're familiar with `ESTree` and `JavaScript AST nodes`. For rule creation refer to [Angular ESlint documentation](https://github.com/angular-eslint/angular-eslint#readme) and [Writing custom TS ESlint rules for Angular guide](https://medium.com/bigpicture-one/writing-custom-typescript-eslint-rules-with-unit-tests-for-angular-project-f004482551db).
+
+Custom rules need to be added to `rules` section of `.eslintrc.json` file. For example on how to do it refer to `Basic Usage` paragraph of [Use none component view encapsulation rule](../../docs/eslint-angular/rules/use-none-component-view-encapsulation.md#basic-usage).
+
+## License
+
+[Apache Version 2.0](https://github.com/Alfresco/alfresco-ng2-components/blob/master/LICENSE)