message: docs: update documentation for v7
diff: # Angular Chartist
  -## Development
  -
  -### Prepare your environment
  -
  -- Install [Node.js](http://nodejs.org/)
  -- Install local dev dependencies: `npm ci` while current directory is this repo
  -
  -### Development server
  -
  -Run `npm run build:lib` and then `npm run start` to start a development server.
  -
  -### Testing
  -
  -Run `npm run test` to run tests.
  -
  -## License
  -
  -Apache-2.0
  +## Installation
  +
  +```bash
  +npm install ng-chartist chartist
  +```
  +
  +```bash
  +pnpm add ng-chartist chartist
  +```
  +
  +## Usage
  +
  +```typescript
  +import { ChartistModule } from "ng-chartist";
  +import { NgModule } from "@angular/core";
  +
  +@NgModule({
  + imports: [ChartistModule],
  +})
  +export class SomeModule {}
  +```
  +
  +```ts
  +import { Component } from "@angular/core";
  +import { Configuration } from "ng-chartist";
  +
  +@Component()
  +export class SomeComponent {
  + public configuration: Configuration = {
  + // Specify the type of chart and the rest of the config will be typed
  + type: "Bar",
  + // Required
  + data: {},
  + // Optional
  + options: {},
  + // Optional
  + responsiveOptions: {},
  + };
  +}
  +```
  +
  +```html
  +<x-chartist [configuration]="configuration"></x-chartist>
  +```
  