docs: update and fix typo in some documents

docs/1-getting-started.md

@@ -29,9 +29,6 @@ $ yarn install
 
 # via pnpm (https://pnpm.io)
 $ pnpm i
-
-# via cnpm (https://github.com/cnpm/cnpm)
-$ cnpm i
 ```
 
 ## Run in development environment

docs/install-local-documentation.md

@@ -0,0 +1,17 @@
+# Manage local documentation
+
+Documents from Vutron can be viewed in the local environment through the VitePress viewer.
+
+Since VitePress and related plugin packages are configured to be selectively installed, they cannot be installed with `npm i`.
+
+Install the relevant packages using the following preconfigured script commands:
+
+```shell
+$ npm run docs:install
+```
+
+You can run the local server where the documents are hosted via the command below.
+
+```shell
+$ npm run docs:dev
+```

docs/other-projects.md

@@ -1,4 +1,4 @@
-# Other projects
+# Other Projects
 
 ## Looking for Electron templates made with React?
 

docs/pre-configured-components.md

@@ -1,4 +1,4 @@
-# Pre-configured components
+# Pre-configured Components
 
 - [Vite 3.x.x](https://vitejs.dev)
 - [Electron 21.x.x](https://www.electronjs.org)