docs: update examples to reflect --open-target (#3146)

Author: snitin315

examples/cli/open-page-multiple/README.md renamed to examples/cli/open-target-multiple/README.md

@@ -1,12 +1,12 @@
 # CLI: Open Page Option (Multiple)
 
 ```console
-npm run webpack-dev-server -- --open-page example1.html --open-page example2.html
+npm run webpack-dev-server -- --open-target example1.html --open-target example2.html
 ```
 
 Some applications may consist of multiple pages. During development it may
 be useful to directly open multiple pages at the same time. The pages to open
-may be specified as the argument to the `open-page` option.
+may be specified as the argument to the `open-target` option.
 
 ## What Should Happen
 

examples/cli/open-page-multiple/app1.js renamed to examples/cli/open-target-multiple/app1.js

@@ -16,7 +16,7 @@ module.exports = [
       new HtmlWebpackPlugin({
         filename: 'example1.html',
         template: '../../.assets/layout.html',
-        title: 'Open Page (Multiple) / Example / Page 1',
+        title: 'Open Target (Multiple) / Example / Page 1',
       }),
     ],
   }),
@@ -30,7 +30,7 @@ module.exports = [
       new HtmlWebpackPlugin({
         filename: 'example2.html',
         template: '../../.assets/layout.html',
-        title: 'Open Page (Multiple) / Example / Page 2',
+        title: 'Open Target (Multiple) / Example / Page 2',
       }),
     ],
   },

examples/cli/open-page-multiple/app2.js renamed to examples/cli/open-target-multiple/app2.js

@@ -1,12 +1,12 @@
 # CLI: Open Page Option
 
 ```console
-npm run webpack-dev-server -- --open-page example.html#page1
+npm run webpack-dev-server -- --open-target example.html#page1
 ```
 
 Some applications may consist of multiple pages. During development it may
 be useful to directly open a particular page. The page to open may be specified
-as the argument to the `open-page` option.
+as the argument to the `open-target` option.
 
 ## What Should Happen
 

examples/cli/open-page-multiple/webpack.config.js renamed to examples/cli/open-target-multiple/webpack.config.js

@@ -12,7 +12,7 @@ module.exports = setup({
     new HtmlWebpackPlugin({
       filename: 'example.html',
       template: '../../.assets/layout.html',
-      title: 'Open Page / Example',
+      title: 'Open Target / Example',
     }),
   ],
 });