intall instructions

README.md

@@ -10,4 +10,15 @@
 - 100, 100, 100, 100 score on Google Lighthouse.
 - Uses same front-matter fields as Dev.to.
 
-### How to install
+### Install
+
+#### 1. Install Gridsome CLI tool if you don't have
+
+`npm install --global @gridsome/cli`
+
+#### 2. Install this starter
+
+1. `gridsome create my-gridsome-site https://github.com/gridsome/gridsome-starter-blog.git`
+2. `cd my-gridsome-site` to open folder
+3. `gridsome develop` to start local dev server at `http://localhost:8080`
+4. Happy coding 🎉🙌