docs: update and fix typo in some documents

docs/1-getting-started.md

@@ -0,0 +1,38 @@
+# Getting Started
+
+## Clone project
+
+You can easily clone a repository with just the npm command. (Recommend)
+
+```shell
+$ npm init vutron
+```
+
+OR, Click **[Use this template](https://github.com/jooy2/vutron/generate)** to instantly create your own project.
+
+OR, Clone this repo using below command.
+
+```shell
+$ git clone https://github.com/jooy2/vutron <PROJECT_NAME>
+```
+
+## Installation
+
+After cloning the project, run the following command in the terminal:
+
+```shell
+# via npm
+$ npm i
+
+# via yarn (https://yarnpkg.com)
+$ yarn install
+
+# via pnpm (https://pnpm.io)
+$ pnpm i
+```
+
+## Run in development environment
+
+```shell
+$ npm run dev
+```