docs: add riot ecosystem plugin

docs/ecosystem-riot-testing-library.md

@@ -0,0 +1,32 @@
+---
+id: ecosystem-riot-testing-library
+title: riot-testing-library
+---
+
+[`riot-testing-library`][gh] builds on top of [DOM Testing Library](https://github.com/testing-library/dom-testing-library) by adding APIs for working with [Riot.js](https://riot.js.org/) components.
+
+```
+npm install --save-dev riot-testing-library
+```
+
+```javascript
+import render, { fireEvent } from 'riot-testing-library'
+import TestTag from './test.tag'
+
+test('should show count text  when rendered', () => {
+  const { queryByTestId } = render(TestTag, {count: 10});
+  expect(queryByTestId('count').textContent).toBe("10");
+})
+
+test('should add count when click add button text', () => {
+    const { queryByTestId } = render(TestTag, {count: 1});
+    expect(queryByTestId('count').textContent).toBe("1");
+    fireEvent.click(queryByTestId('button'))
+    expect(queryByTestId('count').textContent).toBe("2");
+})
+```
+
+
+- [riot-testing-library on GitHub][gh]
+
+[gh]: https://github.com/ariesjia/riot-testing-library

website/sidebars.json

@@ -110,7 +110,8 @@
       "ecosystem-bs-jest-dom",
       "ecosystem-jest-native",
       "ecosystem-react-select-event",
-      "ecosystem-eslint-plugin-testing-library"
+      "ecosystem-eslint-plugin-testing-library",
+      "ecosystem-riot-testing-library"
     ],
     "Help": ["faq", "learning", "contributing"]
   },