Docs: Create "Installation" section out of Guide (#1610)

* docs: create section for installation docs

* docs(ja): create section for installation docs

* docs(ru): create section for installation docs

* docs(zh): create section for installation docs

* docs: add links to Installation section

* docs: fix internal links

* docs: fix headings

* docs(en): reduce and simplify content on Installation

Author: afontcu

Diff for: docs/.vuepress/config.js

@@ -57,6 +57,7 @@ module.exports = {
         ],
         sidebar: [
           '/',
+          '/installation/',
           '/guides/',
           '/api/',
           '/api/wrapper/',
@@ -81,6 +82,7 @@ module.exports = {
         ],
         sidebar: [
           '/zh/',
+          '/zh/installation/',
           '/zh/guides/',
           '/zh/api/',
           '/zh/api/wrapper/',
@@ -105,6 +107,7 @@ module.exports = {
         ],
         sidebar: [
           '/ja/',
+          '/ja/installation/',
           '/ja/guides/',
           '/ja/api/',
           '/ja/api/wrapper/',
@@ -129,6 +132,7 @@ module.exports = {
         ],
         sidebar: [
           '/ru/',
+          '/ru/installation/',
           '/ru/guides/',
           '/ru/api/',
           '/ru/api/wrapper/',

Diff for: docs/README.md

@@ -4,15 +4,11 @@ Vue Test Utils is the official unit testing utility library for Vue.js.
 
 <div class="vueschool"><a href="https://vueschool.io/courses/learn-how-to-test-vuejs-components?friend=vuejs" target="_blank" rel="sponsored noopener" title="Learn how to use Vue Test Utils to test Vue.js Components with Vue School">Learn how to test Vue.js components with Vue School</a></div>
 
+- [Installation](./installation/)
 - [Guides](./guides/)
   - [Getting Started](./guides/getting-started.md)
   - [Common Tips](guides/common-tips.md)
   - [Mouse, Key and other DOM Events](guides/dom-events.md)
-  - [Choosing a test runner](guides/choosing-a-test-runner.md)
-  - [Testing Single-File Components with Jest](guides/testing-single-file-components-with-jest.md)
-  - [Testing Single-File Components with Mocha + webpack](guides/testing-single-file-components-with-mocha-webpack.md)
-  - [Testing Single-File Components with Karma](guides/testing-single-file-components-with-karma.md)
-  - [Testing in Node.js Without a Build Step](guides/usage-without-a-build-step-node.md)
   - [Testing Asynchronous Behavior](guides/testing-async-components.md)
   - [Using with TypeScript](guides/using-with-typescript.md)
   - [Using with Vue Router](guides/using-with-vue-router.md)

Diff for: docs/guides/README.md

@@ -3,11 +3,6 @@
 !!!include(docs/guides/getting-started.md)!!!
 !!!include(docs/guides/common-tips.md)!!!
 !!!include(docs/guides/dom-events.md)!!!
-!!!include(docs/guides/choosing-a-test-runner.md)!!!
-!!!include(docs/guides/testing-single-file-components-with-jest.md)!!!
-!!!include(docs/guides/testing-single-file-components-with-mocha-webpack.md)!!!
-!!!include(docs/guides/testing-single-file-components-with-karma.md)!!!
-!!!include(docs/guides/usage-without-a-build-step-node.md)!!!
 !!!include(docs/guides/testing-async-components.md)!!!
 !!!include(docs/guides/using-with-typescript.md)!!!
 !!!include(docs/guides/using-with-vue-router.md)!!!

Diff for: docs/guides/choosing-a-test-runner.md

@@ -4,56 +4,9 @@
 
 ### Setup
 
-To get a quick taste of using Vue Test Utils, clone our demo repository with basic setup and install the dependencies:
+If you already have a project that was created with the [Vue CLI](https://cli.vuejs.org/), you might want to add and configure the [core Jest plugin](https://cli.vuejs.org/core-plugins/unit-jest.html) or the [core Mocha plugin](https://cli.vuejs.org/core-plugins/unit-mocha.html).
 
-```bash
-git clone https://github.com/vuejs/vue-test-utils-getting-started
-cd vue-test-utils-getting-started
-npm install
-```
-
-If you already have a project that was created with the [Vue CLI](https://cli.vuejs.org/) and want to add testing capabilities you may run:
-
-```bash
-# unit testing
-vue add @vue/unit-jest
-
-# or:
-vue add @vue/unit-mocha
-
-# end-to-end
-vue add @vue/e2e-cypress
-
-# or:
-vue add @vue/e2e-nightwatch
-```
-
-You will see that the project includes a simple component, `counter.js`:
-
-```js
-// counter.js
-
-export default {
-  template: `
-    <div>
-      <span class="count">{{ count }}</span>
-      <button @click="increment">Increment</button>
-    </div>
-  `,
-
-  data() {
-    return {
-      count: 0
-    }
-  },
-
-  methods: {
-    increment() {
-      this.count++
-    }
-  }
-}
-```
+If needed, check out the [Installation guides](../installation/README.md) for further details.
 
 ### Mounting Components