docs: update setup details

.github/contributing.md

@@ -9,8 +9,8 @@ The version number is stored in this file: [`.nvmrc`](../.nvmrc).
 After the corresponding [Node.js](https://nodejs.org/) is installed, run:
 
 ```sh
-# setup .env
-mv .env.tmpl .env
+# set up .env
+cp .env.example .env
 # then fill out the .env
 
 # install dependencies
@@ -40,5 +40,4 @@ If you're using [Visual Studio Code](https://code.visualstudio.com/), the extens
 
 - [ESLint](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint)
 - [markdownlint](https://marketplace.visualstudio.com/items?itemName=DavidAnson.vscode-markdownlint)
-- [TypeScript Vue Plugin (Volar)](https://marketplace.visualstudio.com/items?itemName=Vue.vscode-typescript-vue-plugin)
-- [Vue Language Features (Volar)](https://marketplace.visualstudio.com/items?itemName=Vue.volar)
+- [Vue - Official](https://marketplace.visualstudio.com/items?itemName=Vue.volar)

.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+    "recommendations": [
+        "davidanson.vscode-markdownlint",
+        "dbaeumer.vscode-eslint",
+        "vue.volar"
+    ]
+}

README.md

@@ -2,6 +2,7 @@
 
 [![Netlify Status](https://api.netlify.com/api/v1/badges/23e0b8dc-df98-491d-9885-d4229baa1ccb/deploy-status)](https://app.netlify.com/sites/octobug-blog/deploys)
 [![Badge: GitHub](https://github.com/Octobug/blog/actions/workflows/deploy.yml/badge.svg)](https://octobug.github.io/blog/)
+![Badge: visitors](https://visitor-badge.laobi.icu/badge?page_id=Octobug.blog)
 
 - <https://blog.octobug.site> (hosted on [Netlify](https://netlify.com/))