Update external docs (#1843)

Author: github-actions[bot]

_includes/readmes/body-parser.md

@@ -51,7 +51,7 @@ $ npm install body-parser
 ## API
 
 ```js
-var bodyParser = require('body-parser')
+const bodyParser = require('body-parser')
 ```
 
 The `bodyParser` object exposes various factories to create middlewares. All
@@ -404,10 +404,10 @@ top-level middleware, which will parse the bodies of all incoming requests.
 This is the simplest setup.
 
 ```js
-var express = require('express')
-var bodyParser = require('body-parser')
+const express = require('express')
+const bodyParser = require('body-parser')
 
-var app = express()
+const app = express()
 
 // parse application/x-www-form-urlencoded
 app.use(bodyParser.urlencoded())
@@ -429,16 +429,16 @@ need them. In general, this is the most recommended way to use body-parser with
 Express.
 
 ```js
-var express = require('express')
-var bodyParser = require('body-parser')
+const express = require('express')
+const bodyParser = require('body-parser')
 
-var app = express()
+const app = express()
 
 // create application/json parser
-var jsonParser = bodyParser.json()
+const jsonParser = bodyParser.json()
 
 // create application/x-www-form-urlencoded parser
-var urlencodedParser = bodyParser.urlencoded()
+const urlencodedParser = bodyParser.urlencoded()
 
 // POST /login gets urlencoded bodies
 app.post('/login', urlencodedParser, function (req, res) {
@@ -459,10 +459,10 @@ All the parsers accept a `type` option which allows you to change the
 `Content-Type` that the middleware will parse.
 
 ```js
-var express = require('express')
-var bodyParser = require('body-parser')
+const express = require('express')
+const bodyParser = require('body-parser')
 
-var app = express()
+const app = express()
 
 // parse various different custom JSON types as JSON
 app.use(bodyParser.json({ type: 'application/*+json' }))

_includes/readmes/serve-static.md

@@ -2,8 +2,7 @@
 
 [![NPM Version][npm-version-image]][npm-url]
 [![NPM Downloads][npm-downloads-image]][npm-url]
-[![Linux Build][github-actions-ci-image]][github-actions-ci-url]
-[![Windows Build][appveyor-image]][appveyor-url]
+[![CI][github-actions-ci-image]][github-actions-ci-url]
 [![Test Coverage][coveralls-image]][coveralls-url]
 
 ## Install
@@ -243,8 +242,6 @@ function setCustomCacheControl (res, file) {
 
 [MIT](LICENSE)
 
-[appveyor-image]: https://badgen.net/appveyor/ci/dougwilson/serve-static/master?label=windows
-[appveyor-url]: https://ci.appveyor.com/project/dougwilson/serve-static
 [coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/serve-static/master
 [coveralls-url]: https://coveralls.io/r/expressjs/serve-static?branch=master
 [github-actions-ci-image]: https://badgen.net/github/checks/expressjs/serve-static/master?label=linux